expressio可數嗎

expression雙語例句：

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

這些表達方式經常相互替代使用，但它們的含義卻有所不同。

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

開羅對此次攻擊表示遺憾。

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

她說話聲音很小，但是用了些特別粗俗的字眼兒。

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

我看不到海倫的.表情，因為她轉過頭去了。

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

沉默了良久，貝拉的表情依然很堅定。