difficulties可数吗?

difficulties既是可数名词，又是不可数名词。
difficulties：
n.困难;难题;难事;困境;艰难;费劲;辛苦;困难程度;难度；
difficulty的复数

扩展资料

　　Cases of breathing difficulties increase in lockstep with air pollution.

　　呼吸困难的病例随空气污染的加剧而增加。

　　The difficulties in her way merely strengthened her resolve.

　　她所遇到的`困难只是让她更加坚定。

　　Several pupils were designated as having moderate or severe learning difficulties.

　　几名学生被认定有一定或严重学习困难。

　　Our jobs overlap slightly, which sometimes causes difficulties.

　　我们的工作略有重叠，所以有时引起一些困难。