经常被用来为单性别教育辩护的第二条研究路线恰恰在我的专业领域之内：大脑和认知发展。

The second line of research often used to justify single-sex education falls squarely within my area of expertise: brain and cognitive development.

youdao

对孤立儿童的个案研究表明，他们缺乏坚定的自我概念，而其语言能力的缺乏严重阻碍了他们的智力和心理发展。

Case studies of children who are isolated from others reveal that they lack a firm self-concept, and their mental and psychological development is severely hindered by lack of language.

youdao

只有在20世纪时，随着儿科学和心理学的发展，这些研究才能在一个更客观的基础上进行，即使这一基础仍然不一定很科学。

It was only with the growth of paediatrics and psychology in the twentieth century that studies could be carried out on a more objective, if still not always very scientific, basis.

youdao

the Ministry of, or the Department of Housing and Urban Development working on... various issues that way.

住房和城市发展部，研究……各种不同的问题。

肯尼迪学校 - SpeakingMax英语口语达人