Could you help me?I have some (困难)carrying the heavy box.

题目

Could you help me?I have some (困难)carrying the heavy box.
请问如果填trouble 加不加s 是可数名词还是不可数名词?difficulty呢 该怎么填?

答案

trouble不可数名词,不需要加s；difficulty表示困难的时候是不可数名词,这里就不需要变为复数；但是表示难题、争论的时候是可数名词.