...t is taking effective measures to stop the chemical plant's toxic waste pollution of the river 热胀冷缩量 » Contraction 我想以一件事情，我必须得说你来到大连一定要尝尝这里的海鲜，真的很美味 » I think one thing, I must say you come to Dalian ...
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热胀冷缩量 » Temperatures change volume 让人感到心情舒畅 » let people feel uplifted 上周六，我们班去郊游，去了一个风景优美的小镇，那里很舒适很安静，污染少。
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