His head had struck the sink and was bleeding.

他的头撞到了洗脸池上，正在流血。

《柯林斯英汉双解大词典》

You were hanging a clock. You fell and you hit your head on the sink…which is what makes time travel possible.

当时你站在便池上挂一个钟，不小心就摔倒了，你的头撞到了排水槽上……而这就是使得时间旅行成为可能的一个原因。

youdao

In the men's bathroom, where another man escaped the story, as he bent to splash cold water on his face, he fainted, cracking his head on the sink.

男厕所里，另一个男的想躲在那里逃避这个故事，当他弯下腰往脸上扑凉水的时候，还是昏了过去，一头撞上了洗手池。

youdao

Italian newspapers reported that the pope fell and hit his head against a bathroom sink during the trip.

CNN: Pope Benedict addresses priests of Rome

Neti pots usually involve mixing saltwater (or using a prepackaged solution), leaning over a sink, twisting your head to one side, and inserting the spout into one nostril.

CNN: Why people swear by the neti pot

The elder victim was seriously injured when pieces of ceramic sink were dropped on his head.

BBC: Edlington torture attack brothers detained