作业帮where do people make these machines?转化为被动语态
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/17 06:26:58
where do people make these machines?转化为被动语态
where do people make these machines?转化为被动语态
where do people make these machines?转化为被动语态
Where are these machines made by people!