The expression in her eyes told me something was wrong.

　　她的眼神告訴我出事了。

　　His face took on a set expression.

　　他臉上現出凝滯的神態。

　　The expression on his face never changed.

　　他的面部表情總是一成不變。

　　His expression changed from surprise to one of amusement.

　　他的神情由驚變喜。

　　There was a worried expression on her face.

　　她臉上流露出擔心的神色。