Don't you see what it MEANS, you--you dull-witted animal?

你还不明白这是什么意思吗，你——你这头愚蠢的动物？

They have become stupid, dull-witted.

他们变得愚蠢、迟钝。

The zoo has a panda panda, golden monkey, strange color dull-witted Asian elephants, gentle timid giraffes, etc.

动物园里有憨态可掬的大熊猫、毛色奇特的金丝猴、呆头呆脑的亚洲象，温驯胆小的长颈鹿等。

Instead of a perfumed, handsome lover in velvet and lace, she found herself tied to a dull-witted husband who reeked of medicines and drugs.

她发现她所结合的不是位穿着丝绒服装、佩以饰带、洒过香水的英俊的爱人，而是一个散发着浓烈药味的笨丈夫。