Challenges
n. 挑戰(zhàn)( challenge的名詞復(fù)數(shù) ); 要求; （警衛(wèi)等）查問口令; 懷疑
??? 情景例句
Yes, that's right. They'll be there in no time.
沒錯(cuò)，貨很快就會(huì)運(yùn)到。
Why are you walking so far?
你為什么走得這樣快？
Though my aunt pursued what was, in those days, an enlightened policy, in that she never allowed her domestic staff to work more than eight hours a day, she was extremely difficult to please.
姑媽待傭人在當(dāng)時(shí)算是開明的，從來不讓傭人每天工作超過8小時(shí)，但他們很難使她稱心如意。