1.
The challenger caved in during the seventh round
挑战人进入第七轮就一蹶不振了。
2.
Human beings enjoy challenges.
人类愿意接受挑战。
3.
He is the general challenger.
他是向大家挑战的人。
4.
When he keeps aloof and tries to provoke a battle, he is anxious for the other side to advance.
远而挑战者，欲人之进也；
5.
A challenger of established authority.
向确定的权威挑战的人
6.
" And why would anyone deliberately provoke or challenge him?
”为什么会有人去故意挑逗或挑战他呢？
7.
To challenge another with a display of strength or confidence.
接受挑战接受他人挑战以示力量与自信
8.
His challenge draw no reply.
他的挑战没有引出回答(没有人应战)。
9.
challenge aggressively.
挑衅性的向……挑战。
10.
The Challenge of HR Management for New New People;
新新人类给人力资源管理带来的挑战
11.
Sun Yanqiong, a pretty policewoman from Urumchi, Xinjiang, reckons "Patrol on road is a sort of challenge I like."
孙艳琼是新疆乌鲁木齐人“上路巡逻是挑战，我喜欢挑战。”
12.
Science has exciting challenges to meet.
科学要接受激动人心的挑战。
13.
So, for thousands of years, people have accepted challenges.
因此千万年来人们一直在接受着挑战。
14.
accept(a challenge,a bet,an offer,etc)from sb
接受（某人的挑战、提出之事、提供之物）
15.
Speaking in public is a challenge to a lot of people.
对许多人来说，公众演讲是一大挑战。
16.
They, the members of the Challenger crew, were pioneers.
他们--挑战者号全体机组人员是开拓者。
17.
The greater the challenge, the more difficult it is to find people who can handle it with confidence.
挑战越大，能从容应付的人也就越难求。
18.
He challenged anyone to beat him.
他向任何要打败他的人挑战。