-
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。
youdao
-
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
-
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