Oka River is a river,about1,488 km(925 mi) long,of central European U.S.S.R. flowing north,east,and northeast to join the Volga River near Gorky.是什么意思_Oka River is a river,about1,488 km(925 mi) long,of central European U.S.S.R. flowing north,east,and northeast to join the Volga River near Gorky.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句