Lowell Dittmer, an American scholar, proposes three styles of trilateral relations with original ideas, i.e. menage a trios, romantic triangle and stable marriage.是什么意思_Lowell Dittmer, an American scholar, proposes three styles of trilateral relations with original ideas, i.e. menage a trios, romantic triangle and stable marriage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句