顾不上

xiàn zài gù bu shàng kāi wán xiào

现在顾不上开玩笑。

There is no room for jokes.

tā men shèn zhì lián zǎo fàn hé wǔ fàn dōu gù bu shàng chī

他们甚至连早饭和午饭都顾不上吃。

They even skipped breakfast and lunch.