I cracked my head on the low ceiling.

我的头撞上了低矮的天花板。

《牛津词典》

He cracked his head on the pavement and was knocked cold.

他的头撞着了路面，撞昏了。

《柯林斯英汉双解大词典》

This was the first time I struggled to learn a song, because my voice cracked as I switched to a head voice.

这是我第一次学歌学得这么艰难，因为我在换成头声唱歌时破音了。

youdao

Pacquiao often jabbed to the body and then cracked Bradley to the head with his famous straight left.

WSJ: Bradley Wins Controversial Decision Over Pacquiao

Obie closed his eyes and leaned his head against the cracked window.

NEWYORKER: Idols

He also cracked a rib and cut his head, but Sultan refuted earlier reports that Khan fractured his skull.

NPR: Pakistan's Imran Khan Has 3 Fractured Vertebrae