A violent earthquake of 7.8 grade in magnitude with epicentral intensities of XI occur-red in Tangshan,a coastal city in east part of China,on 28th July 1976 before dawn.是什么意思_A violent earthquake of 7.8 grade in magnitude with epicentral intensities of XI occur-red in Tangshan,a coastal city in east part of China,on 28th July 1976 before dawn.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句