Thomas Edison as a child was sickly, poor, and believed to be retarded by his teacher.

托马斯·爱迪小时候体弱多病，家境贫困，还被老师认为智力迟钝。

Eunice Shriver and her family had a personal reason to be interested in this issue. Her older sister, Rosemary Kennedy, was born mentally retarded.

尤尼斯·施莱佛和她的家族对此问题感兴趣是有私人原因的。她的姐姐罗斯玛丽·肯尼迪天智力迟钝。

Sam Merton's slow intellect had only gradually appreciated the situation.

Sam Merton 迟钝的智力只是逐渐理解了这种情况。

The big ones are mentally slower.

当然，大孩子智力上往往比较迟钝。

And in the years since then, in 2002, the Supreme Court ruled that a person at his level of mental retardation cannot be executed.

此后的几里，2002，最高法院裁定，对于像他这样的智力迟钝程度的人不能被处决。

Bitter and base associations have become the sole food of your memory: you wander here and there, seeking rest in exile: happiness in pleasure—I mean in heartless, sensual pleasure—such as dulls intellect and blights feeling.

痛苦和卑鄙的联想已经成为你记忆的唯一食粮：你四处游荡，在流放中寻求安息：快乐中的幸——我的意思是无情的、感官上的快乐——比如迟钝的智力和枯萎的感觉。