thief

robber, thief, burglar, bandit, gangster, pirate

这些名词均有“资贼、强盗”之意。
robber: 指以暴力或威胁等手段强行夺取他人财物的人。
thief: 普通用词含义广泛，一般专指盗窍者。
burglar: 指夜间撬窗破门行窃的人。
bandit: 指在乡间或小林地区结帮活动，使用恐吓或暴力行窃的人。现指有组织或单独进行抢窃的盗匪。
gangster: 指结伙进行各种非法活动的武装歹徒。
pirate: 指海盗。

名词 thief:

1. a criminal who takes property belonging to someone else with the intention of keeping it or selling it
   同义词：stealer

1. He's a thief and a liar; I'd have nothing to do with him, if I were you.
   他又偷东西又说谎; 我要是你的话，就不跟他来往。
2. The thief slid into the room.
   小偷溜进房间。
3. The police set a trap to catch the thief.
   警察设下了捉拿窃贼的圈套。
4. The thief slipped away down a side street.
   小偷悄悄从一条小马路溜走了。
5. The police worked out a plan to catch the thief.
   警察订下了计划捉贼。
6. He ran fast enough to catch the thief.
   他跑得飞快，足以抓住那小偷。
7. The thief was confined in a prison.
   窃贼被关押在监狱里。
8. The thief was caught red-handed.
   小偷被当场抓住了。