A river of southeast Siberian U.S.S.R. flowing about ,850 km (,50 mi) north and west from Lake Baikal to the Yenisei River.是什么意思_A river of southeast Siberian U.S.S.R. flowing about ,850 km (,50 mi) north and west from Lake Baikal to the Yenisei River.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句