当然，自然，敢情，自是，理当；

[例句] Of course there were lots of other interesting things at the exhibition...

[例句] 'I have read about you in the newspapers of course,' Charlie said...

n. 操作( operation的名词复数 )，（军事）行动，运算，作用；

[例句] The rescue operation began on Friday afternoon...

[例句] The soldiers were engaged in a military operation close to the Ugandan border.

n. 组织者，编制者，发起人，[生]形成体，〈口〉公文柜，（分类记事的）备忘记事簿，[计]整理器；

[例句] The organisers of the demonstration concede that they hadn't sought permission for it...

[例句] ...his campaign organisers who are canvassing for last minute support...

n. 卵子，卵细胞；

[例句] Once the ovum is released it has a lifespan of 12 to 36 hours.

n. 鸦片，麻醉剂；

vt. 使氧化，使生锈；vi. 氧化，变成氧化的；

[例句] Aluminium is rapidly oxidized in air...

[例句] The original white lead pigments have oxidized and turned black.

n. 牡蛎，守秘密的人，鸡背肉，沉默寡言的人；

[例句] He had two dozen oysters and enjoyed every one of them.

[例句] You're young, you've got a lot of opportunity. The world is your oyster.

n. 高声叫喊，尖叫，公开反对，强烈抗议，拍卖，叫卖；

[例句] The killing caused an international outcry...

[例句] There was public outcry from those opposed to abortion.

vt. 超过，越过，优于，胜于，做得比…更好，跑过，逃脱；

[例句] In the mid-eighteenth century the production of food far outstripped the rise in population...

[例句] In 1989 and 1990 demand outstripped supply, and prices went up by more than a third.

n. （正式仪式中的）演说，演讲；

[例句] ...a brief funeral oration.

vt. 因过于雄心勃勃而失败；

[例句] He overreached himself and lost much of his fortune...

[例句] The company had overreached itself and made unwise investments...

vt. 驳回，否决，统治，支配，对…施加影响；

[例句] In 1991, the Court of Appeal overruled this decision...

[例句] I told them it was a lousy idea, but I was overruled.

adj. 散发气味（通常指香味）的；

vt. 使着迷，缠住，迷住，使困扰；

[例句] I must admit that maps obsess me...

[例句] A string of scandals is obsessing America...

adj. 职业的，军事占领的；

[例句] Some received substantial occupational assistance in the form of low-interest loans.

n. 花费，费用；vt. 花费；

[例句] Apart from the capital outlay of buying the machine, dishwashers can actually save you money...

[例句] A beginner could really enjoy the hobby for an outlay of between £100 or £120 a month.

v. 观察，研究( observe的过去式和过去分词 )，遵守，（尤指为科学目的的）观察，看到；

[例句] Stern also studies and observes the behaviour of babies...

[例句] Are there any classes I could observe?...

adj. 单方面的，一边的，片面的，不公道的，倾向一边的，[法]片面的；

[例句] The negotiating was completely one-sided...

[例句] Muster needed just 72 minutes to win the one-sided match, 6-2, 6-3.

adj. 东方的，东方人的，东方文化的，优质的；n. 东方人，东亚人；

[例句] There were Oriental carpets on the floors.

[例句] ...oriental food.

adj. 可憎的，讨厌的，令人作呕的；adv. 令人作呕地；n. 可憎，讨

[例句] Herr Schmidt is certainly the most odious man I have ever met...

[例句] The judge described the crime as odious.