- with obj. look at or observe attentively, typically over a period of time观看; 注视; 观察：
Lucy watched him go
露西看着他走了
no obj. as she watched, two women came into the garden她在观察时, 两个妇女进了花园
with clause everyone stopped to watch what was going on.每个人都停下来看发生了什么事。
- keep under careful, protective, or secret observation看守; 看护; 监视：
there aren't enough staff to watch him properly
没有足够的工作人员来恰当地看护他
he told me my telephones were tapped and that I was being watched.
他跟我说我的电话被窃听, 我正在受到监视。
- no obj.
watch over
observe and guard in a protective way照管, 保护： I guess I can rest a while, with you here to watch over me.
有你在这里保护我, 我想我可以稍稍休息一会儿。
- follow closely or maintain an interest in留意, 注视：
the girls watched the development of this relationship with incredulity.
姑娘们带着怀疑注视着这一关系的发展。
- with obj. exercise care, caution, or restraint about注意, 小心; 节制：
most women watch their diet during pregnancy
多数妇女在怀孕期间都注意饮食
with clause you should watch what you say!你要小心你说的话！
- no obj.
watch for
look out or be on the alert for对…留神; 戒备： in spring and summer, watch for kingfishers
春天和夏天要警惕翠鸟
watch out for broken glass.
注意碎玻璃。
- no obj. [usu. in imperative](watch out) be careful小心, 当心：
credit-card fraud is on the increase, so watch out.
信用卡诈骗活动在增加, 一定要小心。
watch it/yourself
usu. in imperative informal be careful (used as a warning or threat)〈非正式〉小心（用作警告或威胁）：if anyone finds out, you're dead meat, so watch it.
要是有人发现, 你就死定了, 所以千万要小心。
- no obj. archaic remain awake for the purpose of religious observance〈古〉守夜：
she watched whole nights in the church.
她在教堂连续几天整夜守夜。
- a small timepiece worn typically on a strap on one's wrist手表。
- usu. in sing. an act or instance of carefully observing someone or something over a period of time观察; 注视; 留意：
the security forces have been keeping a close watch on our activities.
安全部队一直在严密监视我们的活动。
- a period during which a person is stationed to look out for danger or trouble, typically during the night（尤指夜间）值班, 值夜：
Murray took the last watch before dawn.
默里值黎明前的最后一个班。
- a fixed period of duty on a ship, usually lasting four hours（船上值班的）一班（通常为四个小时）。
- （亦作starboard 或 port watch）the officers and crew on duty during one such period值班船员。
- a spell of duty worked by firefighters or police officers; a shift（消防队员或警察的）一班。
- figurative the period someone spends in a particular role or job〈喻〉做某项任务或工作的时间。
- （一般作the watch）historical a watchman or group of watchmen who patrolled and guarded the streets of a town before the introduction of the police force〈史〉巡夜人; 巡夜队。
- in sing. with adj. informal a film or programme considered in terms of its appeal to the public〈非正式〉吸引观众的电影（或节目）：
this movie's an engrossing watch.
这部电影引人入胜。
be on the watch
- be carefully looking out for something, especially a possible danger留心, 注意; 提防。
keep watch
- stay on the lookout for danger or trouble放哨。
watch one's（或 someone's）back
- protect oneself (or someone else) against danger from an unexpected quarter保护自己（或他人）以防意外的危险。
watch one's mouth
- 见MOUTH.
the watches of the night
- poetic/literary the hours of night, portrayed as a time when one cannot sleep〈诗/文〉漫漫长夜。
watch the pennies
- 见PENNY.
watch one's step
- 见STEP.
watch this space
- 见SPACE.
watch the time
- ensure that one is aware of the time in order to avoid being late注意时间。
watch the world go by
- spend time observing other people going about their business观察世人在做什么。