adjective [原级]（人）熟悉两种语言的，能说两种语言的；涉及两种语言的，使用两种语言的
Even more, the "bilingual advantage hypothesis" is being challenged once again.
更重要的是，“双语优势假说”再次受到挑战。
noun [具体名词]熟谙两种语言的人
They countered that no negative effects of bilingual education have been found.
他们反驳说，还未曾发现双语教育有负面影响。
单词造句: