例句：
名词 (n.)
The witness was telling about the whole accident.
目击者正在讲述整个事故的过程。
The lawyer examined the witness.
律师讯问了证人。
及物动词 (vt.)
Did anyone witness the traffic accident?
有谁目击了这场交通事故？
Please the witness to the room on the right.
请把目击证人带到左边的房间。
不及物动词 (vi.)
The empty cupboard was a witness of his poverty.
空的'食橱就是他贫穷的证明。
He is a living witness to my innocence.
他是证明我清白的活证人。