英语语法分析

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。

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。

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。