为了考试，他连续熬了几个通宵。

Wèile kǎoshì, tā liánxù áo le jǐ ge tōngxiāo.

For the exam, he stayed up several nights in a row.

奶奶正在厨房里熬一锅鸡汤。

Nǎinai zhèngzài chúfáng lǐ áo yì guō jītāng.

Grandma is in the kitchen simmering a pot of chicken soup.

昨晚我熬夜写报告，现在有点困。

Zuówǎn wǒ áoyè xiě bàogào, xiànzài yǒudiǎn kùn.

I stayed up late last night writing a report, so I'm a bit sleepy now.