obedient
[o`bidiənt]
adj. 听话的、顺从的、服从的
例句

Tim is very obedient and always does what he is told.

提姆非常听话,总是按照吩咐做事。

Mark was a very good boy and was always obedient to his parents.

马克是个乖孩子,一向很顺从父母亲。

objection
[əb`dʒɛkʃən]
n. 异议、反对
例句

Let's have fried chicken for dinner, if no one has any objections.

如果没有人反对的话,我们晚餐就吃炸鸡吧。

My coworkers had some objections to the decisions our boss made.

我同事对老闆的决定有些异议。
objections 后面可接介系词 to + N./V-ing)

observation
[͵ɑbsɚ`veʃən]
n. 观察、观测(不可数);观察结果、资料(可数)
例句

Close observation of the animals was part of the scientist's experiment.

近距离观察动物是这位科学家实验的部分内容。

Nicky watched the birds and wrote her observations in a notebook.

妮奇观看鸟并将她的观察结果写在笔记本上。

說明
observ(e) 观察 + -ation 行动
obstacle
[`ɑbstɪkəl]
adj. 障碍(物);阻碍、困难
例句

The road was littered with various obstacles that made driving difficult.

这条路上散落着各种障碍物,使开车变得困难。

I think the short amount of time we have to finish the project will be our biggest obstacle.

我觉得完成这项专案的时间太短是我们最大的障碍。

obtain
[əb`ten]
v. 取得、获得、实现
例句

I obtained a bachelor's degree from National Taiwan University, specializing in history and political science.

我获得国立台湾大学的学士学位,专攻历史和政治学。

obviously
[`ɑbviəsli]
adv. 明显地;显然地
例句

The dirt around the plant is dry, so you obviously forgot to water it this morning.

这个盆栽四周的土是乾的,所以显然你今天早上忘了给它浇水。

occasion
[ə`keʒən]
n. 场合、时刻;时机;重大活动、仪式
例句

Jean's wedding was an occasion of great happiness for her family and friends.

珍的婚礼对她的亲朋好友来说是个非常幸福的时刻。

When men have to dress up for a special occasion, they can't go wrong with a navy suit.

男士必须为特殊场合盛装打扮时,穿着深蓝色的西装绝不会出错。

occupation
[͵ɑkjə`peʃən]
n. 职业、工作(可数);占领、占据(不可数)
例句

Please fill in the form with your name, occupation, and other personal information.

请在表格上填写你的姓名、职业和其他个人资料。

The German occupation of France during World War II lasted four years.

第二次世界大战期间德国持续占领法国四年。

occupy
[`ɑkjə͵paɪ]
v. 居住、使用;占用;占领、占据;使忙碌、全神贯注
例句

An elderly couple has occupied the apartment upstairs for over 40 years.

一对老夫妇已住在楼上公寓超过四十年了。

The army occupies large parts of the region.

军队占领这个地区大部分的地方。

Tim and James occupied themselves with board games while their mom cooked dinner.

提姆和詹姆斯忙着玩棋盘游戏,而他们的妈妈则在做晚餐。

odd
[ɑd]
adj. 奇特的、古怪的;奇数的、单数的;不成对的
例句

She likes to wear odd clothing to get herself noticed.

她喜欢穿奇装异服来让自己受到注目。

After doing the laundry I was left with two odd socks; I couldn't find the other two anywhere.

洗完衣服后我只剩下两隻不成对的袜子;我到处都找不到另外两隻。

offensive
[ə`fɛnsɪv]
adj. 冒犯的、得罪人的;令人反感的;(体育球队中的)进攻的
n. 进攻、攻势
例句
adj. 冒犯的、得罪人的;令人反感的;(体育球队中的)进攻的

A lot of people found the comedy show to be offensive.

很多人觉得这齣喜剧节目令人反感。

During practice, our coach explained her new offensive strategy.

练习时,教练解释了她新的进攻策略。

n. 进攻、攻势

The army's air offensive marked a turning point in the war.

军队的空袭标誌着战争的转捩点。

opera
[`ɑpərə]
n. 歌剧
例句

You'll have to dress up if you want to go see an opera.

如果你要去看歌剧,就得要盛装打扮。

opponent
[ə`ponənt]
n. 对手;竞争者;反对者
例句

The boxer knocked his opponent out cold to win the match.

这名拳击手将对手击昏,赢得了比赛。

Opponents of the law took to the streets when it went into effect.

这项法律的反对者在它生效后走上街头。

option
[`ɑpʃənʃ]
n. 可选择的事物;选项、选择
例句

This school offers numerous options for students interested in taking art classes.

这所学校为有兴趣修艺术课程的学生提供很多选择。

Every possible option should be taken into consideration before you make a decision.

在你做决定之前,应考虑所有可能的选择。

oral
[`ɔrəl]
adj. 口头的、口述的;口腔的;口服的
n. 口试
例句
adj. 口头的、口述的;口腔的;口服的

Tracy has an oral test in English class on Tuesday.

崔西礼拜二有英语口说测验。

The doctor gave me oral antibiotics to treat the infection.

医生开给我口服抗生素治疗感染。

n. 口试

I'm sure I passed the written part of the test, but I think I failed the oral.

我确信我通过了笔试部分,但我想我没有通过口试。

orbit
[`ɔrbət]
n. 轨道
v. 环绕⋯⋯的轨道运行
例句
n. 轨道

The satellite will remain in orbit for five years.

这颗卫星将在轨道上运行五年。

v. 环绕⋯⋯的轨道运行

The Earth orbits the Sun.

地球绕太阳公转。

orchestra
[`ɔrkəstrə]
n. 管弦乐队
例句

My brother plays the violin in the school orchestra.

哥哥在学校的管弦乐团里演奏小提琴。

organ
[`ɔrgən]
n. 器官;管风琴、风琴
例句

The skin is considered the largest organ of the human body.

皮肤被认为是人体最大的器官。

Trudy plays the organ in church every Sunday.

楚蒂每个礼拜天在教堂演奏管风琴。

origin
[`ɔrədʒən]
n. 起源、来源、由来;出身、血统
例句

The origin of this dish can be traced back to the 18th century.

这道菜的起源可追溯至十八世纪。

According to the dictionary, this word is of unknown origin.

根据这本字典,这个字的起源无从得知。

說明
of + adj. + origin ⋯⋯的起源、出身
otherwise
[`ʌðɚ͵waɪz]
adv. 否则、不然;在其他方面;以其他方式
例句

You should bring your umbrella. Otherwise, you will get wet in the rain.

你应该带着你的伞。否则,你会被雨淋湿。

Mary has a minor cough but is otherwise healthy.

玛莉有点咳嗽,其他方面还算健康。

All of the salesclerks are helping customers or are otherwise busy.

所有的店员都在协助顾客或有别的事在忙。

說明
other 其他的 + -wise 以⋯⋯方式
ought
[ɔt]
aux. 应当、应该
例句

I ought to take the dog out for a walk, but I am feeling too tired to do so.

我应该带狗出去散步,但是我觉得太累而无法这麽做。
(ought to V. 常用来表示道义、责任上应做某事,语气比 should 强烈。)

Sarah got home late last night, so you ought not to wake her so early in the morning.

莎拉昨晚很晚回家,所以你应该不要一大早就叫醒她。

outcome
[`aᴜt͵kʌm]
n. 结果、后果、结局
例句

We hope that the outcome of the election will be positive.

我们希望这次选举的结果会是正面的。

output
[`aᴜt͵pᴜt]
n.(人、国家、机器、工厂等的)产量;(电脑)输出文件、输出资料
例句

Our factory has steadily increased its output over the past year.

我们工厂在过去一年的产量稳定增加。

outstanding
[aᴜt`stændɪŋ]
adj. 杰出的、优秀的;(款项)未支付、未结清的
例句

Everyone agrees that the city did an outstanding job on the new subway line.

大家都同意这个城市在新的地铁线方面做得很杰出。

The rental payment is still outstanding; please make the payment as soon as possible.

这笔租金仍未支付;请尽快付款。

outward
[`aᴜtwɚd]
adj. 外表的、表面上的;向外的;外部的
adv. 向外、在外
例句
adj. 外表的、表面上的;向外的;外部的

His outward expression of happiness hid anger and disgust.

他幸福的外表隐藏着愤怒和厌恶。

adv. 向外、在外

Rather than sliding to one side, this type of window opens outward.

这种窗户不是向一侧滑动,而是向外打开。

overall
[`ovɚ͵ɔl]
adj. 总的、整体的;全面的
n. 连身工作裤(常用複数)
例句
adj. 总的、整体的;全面的

Peter's overall health has improved since he started exercising regularly.

自从彼得开始经常锻鍊以来,他整体的健康状况已有改善。

n. 连身工作裤(常用複数)

The mechanic wiped his hands on his dirty overalls and sat down.

这名技工在髒兮兮的工作裤上擦了擦手然后坐下。

overcome
[͵ovɚ`kʌm]
v. 克服、战胜;(情感上)受到极大影响
例句

Brian was finally able to overcome his financial problems.

布莱恩终于克服了财务问题。

After returning home from her long trip, my aunt was overcome with happiness at the sight of her dog.

长途旅行返家后,阿姨一看到她的狗就无比高兴。
(be overcome with/by + N. 深感⋯⋯;不胜⋯⋯)

說明
动词三态为 overcome-overcame-overcome
overlook
[͵ovɚ`lᴜk]
v. 眺望、俯瞰;忽略、未注意到
例句

My apartment overlooks a small park.

我的公寓俯瞰一座小公园。

We should choose Wendy for the team, and let's not overlook Ida.

我们应该选温蒂加入球队,还有不要忽略艾达。

說明
over- 在⋯⋯上方 + look 观看
overnight
[͵ovɚ`naɪt]
adv. 突然、一夕之间;整夜、在夜间地
adj. 一夜之间的、突然的;夜间的;过夜的
例句
adv. 突然、一夕之间;整夜、在夜间地

Regina couldn't change her eating habits overnight.

芮吉娜无法一下子改变她的饮食习惯。

Donna must remain in the hospital overnight.

唐娜必须留在医院过夜。

adj. 一夜之间的、突然的;夜间的;过夜的

The film was an overnight success and brought its lead actors worldwide fame.

这部电影一夕成名,也让主角们享誉国际。
(an overnight success 表示「一夕成名;一夕致富」)

overtake
[͵ovɚ`tek]
v. 赶上、超越;(数量、程度上)超过;(情绪或灾难等)突然侵袭
例句

The brown horse overtook the white one in the last minute of the race.

那匹棕马在比赛最后一分钟超越了白马。

As I looked at the old photos, I was overtaken by my memories of childhood.

看着旧照片时,我的童年回忆涌上心头。

說明
动词三态为 overtake-overtook-overtaken
overweight
[͵ovɚ`wet]
adj. 超重的
例句

Brian is sick and tired of being overweight, so he wants to go on a diet.

布莱恩受够了体重过重,所以他想要节食。

owe
[o]
v. 欠钱(债、情等);归功于、归因于
例句

I asked Vincent to give me the money that he owes me.

我要求文森将欠我的钱还给我。

I owe my success to my mother, who taught me the value of hard work.

我的成功要归功于我母亲,她教导了我努力的价值。
(owe sth to sb/sth 将某事归功于⋯⋯)

I owe you an apology for the things that I said last night.

我为我昨晚说的话向你道歉。
(owe sb an apology 欠某人一个道歉)