verb · referring to a screw or rivet head that is flush with or below the surface

这种家具装配需要使用埋头螺钉。

verb · to be fully engrossed in or concentrate intensely on a task

他最近正埋头准备研究生考试。

verb · to bend or drop the head downward, often to hide or avoid something

他埋头在风雨中赶路。