vt. 经历，经验，遭受，承受；

[例句] New recruits have been undergoing training in recent weeks...

[例句] He underwent an agonising 48-hour wait for the results of tests.

adj. 不透明的，无光泽的，晦暗的，不传导性的，含糊的，迟钝的；n. 不透明，晦暗，[建]遮檐，遮光涂料；

[例句] You can always use opaque glass if you need to block a street view.

[例句] ...the opaque language of the inspector's reports.

n. 水牛（分非洲水牛和亚洲水牛两种），（南非或北美的）野牛，威胁，恐吓；vt. 威胁，欺骗，迷惑；

n. 大衣，外套，保护层，护膜；

adj. 即可使用的，（用于）操作的，经营的，军事行动的；

[例句] The whole system will be fully operational by December 1995.

[例句] The nuclear industry was required to prove that every operational and safety aspect had been fully researched.

adj. 视觉的，视力的，眼睛的，光学的；

[例句] ...optical telescopes.

[例句] ...the optical effects of volcanic dust in the stratosphere.

vt. 任命（某人）为牧师，授予（某人）圣职，（上帝、法律等）命令，判定；

[例句] He was ordained a Catholic priest in 1982...

[例句] Women have been ordained for many years in the Church of Scotland...

adj. 已占用的，在使用的，无空闲的；v. 占领( occupy的过去式和过去分词 )，使用，使从事，任

[例句] There were over 40 tenants, all occupying one wing of the hospital...

[例句] Land is, in most instances, purchased by those who occupy it.

v. 承认( own的第三人称单数 )，拥有，服从于，认领；

[例句] My wife decided I should have my own shop...

[例句] ...another group of patients who were taught to change their own dressings...

adj. 向前的，前进的；adv. 向前，在前面；

[例句] British Airways have two flights a day to Bangkok, and there are onward flights to Phnom Penh.

[例句] ...the onward march of progress in the British aircraft industry.

n. 微型计算机，微处理器；adj. 极小的；

[例句] The vital task was to allow the economy to operate freely at a micro level.

pron. “myself”的复数，我们自己，（把）我们自己；

[例句] We sat round the fire to keep ourselves warm...

[例句] It was the first time we admitted to ourselves that we were tired.

n. 烤箱，烤炉，灶；

[例句] Put the onions and ginger in the oven and let them roast for thirty minutes.

vt. 和…起冲突，和敌军起冲突，反抗，抗拒，相对：放在某事物对面以对比或平衡；vi. 对抗，对立；adj. 强烈反对某事物的，（表示对比）而，相对于，相反的，敌对的；

[例句] I am utterly opposed to any form of terrorism...

[例句] We are strongly opposed to the presence of America in this region.

n. 别的( other的名词复数 )，其他的，（两个中的）另一个，其余的；

[例句] They were just like any other young couple...

[例句] The communique gave no other details.

adj. 听觉的，声音的，音频的；n. 声音回路，音响，可听到的声音，声音信号；

[例句] She uses her vocal training to record audio tapes of books for blind people.

n. （套捕马、牛等用的）套索；vt. 用套索套捕；

[例句] Cowboys drove covered wagons and rode horses, lassoing cattle.

n. 物主身份，所有权，所有制，所有；

[例句] On January 23rd, America decided to relax its rules on the foreign ownership of its airlines.

[例句] ...the growth of home ownership in Britain...

vt. 使最优化，使尽可能有效；

[例句] Doctors are concentrating on understanding the disease better, and on optimizing the treatment...

[例句] The new systems have been optimised for running Microsoft Windows.

n. 省略，删节，遗漏，疏忽，[法]不履行法律责任；

[例句] The duke was surprised by his wife's omission from the guest list.

[例句] ...the prosecution's seemingly malicious omission of recorded evidence.