expression

A confused expression appeared on her face when she read the strange letter.

(Chinese) 读到那封奇怪的信时，她的脸上露出了困惑的表情。

He had a stern expression during the meeting that made everyone nervous.

(Chinese) 他在开会时表情严肃，让大家都很紧张。

"Break a leg" is a common English expression used to wish someone good luck.

(Chinese) “Break a leg”是一个常用的英语短语，用来祝某人好运。

She used several old-fashioned expressions that I had never heard before.

(Chinese) 她用了几个我以前从未听过的老式表达方式。