Invaded by the Red Army in 1921, it was proclaimed a soviet republic and officially joined the U.S.S.R. in 1922.是什么意思_Invaded by the Red Army in 1921, it was proclaimed a soviet republic and officially joined the U.S.S.R. in 1922.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句