语法
①to challenge sb 向某人挑战
例句 Tom hope that I can go to challenge myself.
②pose a challenge to 向··提出挑战
例句He poses a challenge to me.
③to accept/take up a challenge 接受挑战
例句I take up a challenge.
④challenge+人+to a race 向某人挑战赛跑/比赛
词组
a career that offers a challenge
大有作为的事业
