您是不是要找:difficulty，difficulty既是可数也是不可数。

difficulty：

n.困难;难题;难事;困境;艰难;费劲;辛苦;困难程度;难度；

复数： difficulties

扩展资料

The tasks have been ranked in order of difficulty.

按照困难程度对工作进行了分类。

Many clubs in the lower reaches of the league are in financial difficulty.

联盟下层的许多俱乐部都处于财政困难之中。

The difficulty of a problem was defined in terms of how long it took to complete.

问题的难易度是以解决这个问题所花时间的长短而定的。

She has lots of good ideas, but she has difficulty formulating them.

她有很多好的想法，但就是不善于表达。