I think George is getting soft in the head.

我想乔治的脑袋在变得不太好使了。

Since John met that girl he's gone soft in the head.

约翰自从遇见那姑娘起，头脑就有点不正常了。

To feel any loyalty to an employer who could fire you at any moment is soft in the head.

忠于随时会解雇你的公司是头脑被驴踢了。