Keep clean and quiet in the classrooms. Because classroom is a place to study.
在教室里面要保持清洁和安静，因为教室是一个学习的地方。
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。
Students are required to keep their classrooms clean and tidy after school.
下课离校前须保持课室清洁。
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