witness

/ˈwɪt.nəs/

名词

（尤指犯罪或事故的）目击者
She was witness to the tragic event.
她目睹了这一悲剧。
（法庭上的）证人
The key witness for the prosecution was offered police protection after she received death threats.
原告的关键证人在受到死亡恐吓后得到了警方的保护。