3 witness (1) v 当场见到，目击 I witnessed an accident on my way home yesterday. (2) v表明，说明 Her flushed（通红） face witnessed the excitement she felt. (3) v作证 None could witness that he was present. (4) v 为…作证 常与to 连用 He witnessed to having seen the man enter the room. 他作证说他看到那个人进入房间。 (5) n (C) “目击者，证人”常与to连用The police found the witness to the murder case.He was a witness to the accident. (6) n (C,U) 证词，证据，证明 His ragged clothes were (a) witness to his poverty. The old man gave witness on behalf of an accused person. 那位老人为被告作证。 on behalf of 代表/替… 相关短语：be a witness to 是…的目击者 give witness on behalf of 替…作证 witness to 为某事作证说