difficulty是可数名词吗?是any difficulty 还是any difficulties?

have any difficulties with sth对还是have any difficulty with st 为什么是Do you have any difficulty in your studies?在这句里any后不该加名词 any加可数名词是单数还是复数 是have little difficulty?还是have some difficulty? have some difficulties还是difficulty in any other 一定是加可数名词单数形式吗? interest,difference difficulty 可数名词么 DO you have any difficulty ____ listening? 英语翻译Any difficulty to meet the requirement? policy,difficulty是不可数? With difficulty choice是 have some difficulty (in) doing sth.中的 difficulty可数吗