eyewitness
['ai,witnis]
n. 目击者；见证人
参考例子
1.He had an ace in the hole: an eyewitness.
他手上有秘密武器（神秘王牌）：目击者。
2.The eyewitness can substantiate all the testimony.
目击证人能够证实所有的证词。
3.A 31-year-old man in police custody says he tossed a cigarette out of his car, but an eyewitness told police the man threw a large object, the glass bottle with an accelerant.
拘留在警察局的31岁的一名男子说他从车里扔出了一支烟，但是目击者称他扔出了个大东西，一个盛满了催化剂的的玻璃瓶子。
英文解释
n.
1.a spectator who can describe what happened
2.be present at an event and see it with one's own eyes
网络释义
eyewitness
目击者; 目击证人; 目击证人,目击者; 超级特务;
eyewitness testimony
目击者证词;
Eyewitness accounts
目击实录;
eyewitness news
见证新闻;
identification eyewitness
辨认证人;