n.

1. 目擊者；見證人[C][（+to/of）]
   She gave an eyewitness account of the crime.

   她對親眼目睹的犯罪事件作了陳述。

   He was the only eyewitness of the robbery.

   他是那起搶劫案的唯一目擊者。

vt.

1. 親眼看見，目睹
   The old woman claimed she had eyewitnessed the murder.

   老婦人聲稱她目睹了那起兇殺事件。

n.