keep classrooms clean
保持教室清洁
以上为机器翻译结果，长、整句建议使用 人工翻译 。
His work is to keep all the classrooms clean on the second flood.
他的工作就是保持二层的所有教室的清洁。
youdao
Students are required to keep their classrooms clean and tidy after school.
下课离校前须保持课室清洁。
应用推荐
模块上移
模块下移
不移动