他用假发和胡子伪装自己，没人认出他来。

He ___disguised himself with a wig and mustache, so no one recognized him.

他在派对上戴了一个面具作为伪装。

He wore a mask as a ___disguise at the party.

她用夸张的笑声掩饰内心的紧张。

She ___disguised her nervousness with exaggerated laughter.