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Stop littering when walking in the street.
在街上走路不要扔纸屑。
youdao
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People have to stop littering. We have to respect our surroundings. We must become friends of the earth.
人们必须停止乱丢垃圾。我们必须尊重我们的环境，我们必须成为地球的朋友。
youdao
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Stop High-rise Littering.
停止高楼抛物。
youdao
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Stop High-rise Littering.
停止高楼抛物。
youdao