expression当表情讲可数吗

　　Try to put a little more expression into it!

　　尽量注入更多的感情！

　　Freedom of expression is a basic human right.

　　言论自由是基本的人权。

　　The expression in her eyes told me something was wrong.

　　她的眼神告诉我出事了。

　　His face took on a set expression.

　　他脸上现出凝滞的'神态。

　　The expression on his face never changed.

　　他的面部表情总是一成不变。