英语翻译about the time that schools and others quite reasonably

参考译文：大概在学校等部门把注意力很合理地转移到保证孩子们得到公平对待时（无论他们有着什么样的背景）,智力测试开始被冷落.
1.About the time that（引导时间状语从句 ）schools and others quite reasonably became interested in seeing to it that all children were fairly treated.
2.see to it that + 从句“确保”.
3.whatever their background省略的让步状语从句 .
4.intelligence testing became unpopular.整个句子的主句.

我晕了！！
翻译：大约学校和其他相当适度地对处理它感兴趣的时间所有的孩子,任何的他们的背景 ,公平地被对待 ,智力测试变成不受欢迎。