他头疼得很厉害，只好请假在家休息。

Tā tóuténg de hěn lìhai, zhǐhǎo qǐngjià zài jiā xiūxi.

He had a severe headache and had no choice but to take leave and rest at home.

他今天头疼，所以没来上班。

Tā jīntiān tóuténg, suǒyǐ méi lái shàngbān.

He has a headache today, so he didn’t come to work.

老师走进教室的时候，大家都抬起头来看他。

Lǎoshī zǒujìn jiàoshì de shíhou, dàjiā dōu táiqǐ tóu lái kàn tā.

When the teacher walked into the classroom, everyone raised their heads to look at him.