His tests showed that the delay is present in children with autism aged 10 and if further tests prove the same is true in much younger children then it could lead to widespread screening.

他的实验表明，十岁的自闭症患儿存在这种延迟，如果进一步的实验证实同样的情况也出现在更多小孩子身上，那么就可以利用它进行更广泛的检查。

youdao

Commonly starting at puberty, migraine mostly affects those aged between 35 and 45 years but can trouble much younger people, including children.

通常从青春期开始，偏头痛主要侵袭年龄在35岁至45岁之间的人，但可殃及更年轻的人，包括儿童。

youdao

You can apply sunscreen to children as young as age 6 months. Keep younger children in the shade as much as possible.

6个月大的孩子就可以抹防晒霜了，同时要尽可能让你的孩子待在阴凉处。

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And much younger children can also bring cases if they pass a simple test to persuade lawyers that they understand what a solicitor is.

BBC: Families at War: Transcript

It was actually a primary school, much younger children.

WHITEHOUSE: President Obama & Prime Minister Gillard Visit Wakefield High School | The White House

If they have not practised reading and writing, younger children especially tend to forget much of what they have learned, making it hard to pick up where they left off.

UNESCO: Education