Changes of the Rice-Seeded Area in Beijing and Tianjin Region during the Past 50 Years and Its Responses to the Changes of precipitation是什么意思_Changes of the Rice-Seeded Area in Beijing and Tianjin Region during the Past 50 Years and Its Responses to the Changes of precipitation在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句