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。
bi (双) + lingu (语言) + al (…的) → 双语的 → 能说两种语言的
单词造句:
- 网友用“Bilingual”造句精选
- ...bilingual education. …双语教育。
- Researchers now claim that earlier research on bilingual education was seriously flawed. 研究人员现声称，双语教育的早期研究存在严重缺陷。