a crowd of和crowds of区别

2017年9月22日 - There was a crowd of people in front of the town hall..Sam and his crowd went into the discotheque...

2017年9月22日 - crowds of与a crowd of意思是否一样?crowd这个词具体有什么用法? 题目 举报 有a crow... A cloud of 和A crowd of 有区别马 a large crowd of用法 二...