HSK 5 · verb · noun · Practice
挑战
to challenge; challenge
爬山对我是很大的挑战。
Páshān duì wǒ shì hěn dà de tiǎozhàn.
Climbing the mountain is a big challenge for me.
运动员挑战自己的身体极限。
Yùndòngyuán tiǎozhàn zìjǐ de shēntǐ jíxiàn。
The athlete challenges his physical limits.