你居然敢挑战他？

Nǐ jūrán gǎn tiǎozhàn tā?

You actually dare to challenge him?

疫情为旅游业带来重大挑战。

Yìqíng wèi lǚyóuyè dàilái zhòngdà tiǎozhàn.

The pandemic has brought major challenges to the tourism industry.

她勇敢的接受挑战。

Tā yǒnggǎn de jiēshòu tiǎozhàn.

She bravely took on the challenge.