Keep a clean environment outside the room, forbidden to throw garbage outside.
不随意丢放垃圾，保持室外清洁的环境，做文明人，做文明事。
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Please clean up the garbage in each class room after lunch.
请在餐后把课室里的垃圾清理。
应用推荐
模块上移
模块下移
不移动