expressio可数吗

　　expression双语例句：

　　1、These expressions are often used interchangeably, but they do have different meanings.

　　这些表达方式经常相互替代使用，但它们的含义却有所不同。

　　2、From Cairo came expressions of regret at the attack.

　　开罗对此次攻击表示遗憾。

　　3、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。

　　4、I couldn't see Helen's expression, because her head was turned.

　　我看不到海伦的.表情，因为她转过头去了。

　　5、The silence lengthened. Bella's expression was inflexible.

　　沉默了良久，贝拉的表情依然很坚定。