·2,447,543篇论文数据，部分数据来源于NoteExpress
1998年夏季我国出现了大范围的天气异常，在长江流域发生了2 0世纪第二大的全流域性洪水。
In the summer of 1998, there was large-scale weather anomaly in China and the whole Yangtze River basin suffered a severe flood event, which is only next to 1954 in the 20th century.
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