John Langdon Down 约翰·朗顿·唐 ; 兰登医生 ; 一位叫唐·兰登
langdon down
兰登下
以上为机器翻译结果，长、整句建议使用 人工翻译 。
As a boy, Langdon had fallen down an abandoned well shaft and almost died treading water in the narrow space for hours before being rescued.
他骗自己，慢吞吞地走回电梯。还是个孩子时，兰登掉进了一个废弃的深井里，他在那狭窄的空间踩水好几个小时后才获救，差点死在那里。
youdao
A British doctor named John Langdon Down first described it in the eighteen sixties.
VOA: special.2009.09.09
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