BBC在线收听下载:特朗普白宫接待以总理 称促进以巴和平

短语讲解：

1. The earliest children tend to be diagnosed at the age of two.

at the age of 在…岁时
例句：He'd dropped out of high school at the age of 16
他16岁的时候就从中学退学了。

2. Some cases are not picked up until children go to school.

pick up 捡起; 接载; 学会
例句：Pick up your garments and hang them in the closet.
把你的外套收起来挂到衣柜里。