他没什么工夫做饭，经常点外卖。

Tā méi shénme gōngfu zuòfàn, jīngcháng diǎn wàimài.

He doesn't really have time to cook, so he often orders takeout.

我最近事情很多，没工夫去旅游。

Wǒ zuìjìn shìqing hěn duō, méi gōngfu qù lǚyóu.

I have a lot of things to do recently and don't have time to travel.

只要下工夫练习，你的口语一定会进步。

Zhǐyào xià gōngfu liànxí, nǐ de kǒuyǔ yídìng huì jìnbù.

As long as you put in effort to practice, your spoken Chinese will definitely improve.