The constant floods and droughts in the Yangtze and Huaihe river area during the Ming and Qing dynasties had resulted from the combined action of many elements.是什么意思_The constant floods and droughts in the Yangtze and Huaihe river area during the Ming and Qing dynasties had resulted from the combined action of many elements.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句