expression表达可数吗

　　Latterly his painting has shown a new freedom of expression.

　　最近，他的绘画展示出一种新的自由表现形式。

　　Only in his dreams does he give expression to his fears.

　　他只有在梦中表现出恐惧。

　　There was a bored expression on her face.

　　她脸上有一种厌倦的表情。

　　Laughter is one of the most infectious expressions of emotion

　　笑是最具感染力的情感表达方式之一。

　　She spoke in a quiet voice but used remarkably coarse expressions.

　　她说话声音很小，但是用了些特别粗俗的字眼儿。

　　From Cairo came expressions of regret at the attack.

　　开罗对此次攻击表示遗憾。