Your room is in a mess;you must (使整洁) it at once.
问题描述：
Your room is in a mess;you must (使整洁) it at once.
答
tidy 使整洁 或者用clean也可以
答
Your room is in a mess;you must (tidy,使整洁) it at once.
你的房间弄得一团糟.你必须马上收拾整齐.