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With the living standard (rises改成rising),there is a large amount (加入of) waste on campus,For example,some students tend to leave the (light改成lights) on during the day and water (run改成running) after washing.They also throw away the food (what改成which/that 或 去掉what) they don’t like.So it is (highly改成high) time we dealt with these problems.
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