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The Western Sea of Korea has suffered from The Hwang Ho (the longest China's river) polluted by sewage.
韩国西部的河流已经被中国黄河的污水严重污染了。
youdao
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The Western Sea of Korea has suffered from The Hwang Ho (the longest China's river) polluted by sewage.
韩国西部的河流已经被中国黄河的污水严重污染了。
youdao