sleeping policeman是什么意思?不是睡觉的警察,是个固定搭配

sleeping policeman是什么意思?不是睡觉的警察,是个固定搭配 policeman的复数是policemens还是policeman Policeman的复数是? policeman是么意思 policeman SLEEPING sleeping sleeping Sleeping sleeping sleeping是啥意思?哈哈哈 a (sleepy sleeping)baby选择 是sleepy还是sleeping “sleeping pill”中的“sleeping”是动名词还是现在分词?为什么? 警察制服是policeman 还是policemen uniform if you found a member of staff sleeping at work 是什 Jim is sleeping.用一个词代替“sleeping”.我认为是“asleep”,为什么正确答案是“sleepy”呢? I am a policeman.(对画线部分提问）【是am a policeman部分】 My uncle is a policeman.(对划线部分提问）划线部分是a policeman.