钉子 釘子

对工具箱里只有一把榔头的人来说，所有的问题都像钉子。

Duì gōng jù xiāng lǐ zhǐ yǒu yī bǎ láng tou de rén lái shuō, suǒ yǒu de wèn tí dōu xiàng dīng zi.

To the man who only has a hammer in the toolkit, every problem looks like a nail.