dew可数吗

不可数，dew，意思是露水，例如：

1、The grass was wet with early morning dew.清晨的露水使得青草湿漉漉的。

2、If it were not for the vapour in the air， there would be no dew.如果空气中没有水气，就没有露水。

3、The dew gathered on the leaves.露水在叶子上凝结。