An' us all thinkin' he was a poor half-witted lad with not a straight bone in him.

我们都认为他是一个可怜的弱智孩子，浑身没有一根直的骨头。

There he is, that repulsive, half-witted fool!

那就是他那个讨厌的，愚笨至极的傻瓜！