Challenges
n. 挑战( challenge的名词复数 ); 要求; （警卫等）查问口令; 怀疑
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
The athletes competed for the honor of their country.
选手们为了国家的荣誉而互相竞赛。
I'm fine,too. Excuse me, Miss Gao, what's this in English?
我也很好。请问，高小姐，这个用英语怎么说？