每空一词下课后你们一定要收拾干净教室.You must ______ ______ your classroom after class.
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clean upYou must clean up your classroom after class.
热心网友
taotao 错了，clean downv.刷干净的意思本题应是 clean upv.打扫干净, 整理, 赚钱, 获利
热心网友
CLEAN UP
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be clean我觉得，不保证对．
热心网友
clean down
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我也填clean up打扫干净。
热心网友
clean up
热心网友
clean up