She used the whole senior class to help the lower school clean up the playground on Earth Day.
她曾在地球清洁日组织整个高年级班级帮助低年级打扫操场。
Once the bell for class rings, we clean up our dresses, wipe off sweat, go back to the classroom and wait for the teacher.
上课铃一响，我们就赶紧把地板扫干净，把桌子擦干净，然后赶紧回到座位上去等待老师。
Once the bell for class rings, we clean up our dresses, wipe off sweat, go back to the classroom and wait for the teacher.
上课铃一响，我们就赶紧把地板扫干净，把桌子擦干净，然后赶紧回到座位上去等待老师。
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