Right now the biggest challenge many face is access to credit - the ability to get loans at affordable rates.

VOA: standard.2009.03.16

- Part of the challenge is speed, too, how quickly you can get these answers in terms of getting them in on time.

部分困难也会来自于速度，你多快能做出答案,能否在规定的时间做完。

麻省理工公开课 - 化学原理课程节选

The challenge will be to get legislation on the table that will back up those numbers.

面临的挑战将是进行支持这一目标的立法。

对全球变暖的政策 - SpeakingMax英语口语达人

That might be an excuse for us to get a challenge from somebody in a primary.

WHITEHOUSE: President Obama Holds a News Conference

She chose not work in a positive way to get this challenge addressed.

FORBES: Getting In Our Own Way- Victims and Bullies

And if the call is over-turned, the manager should get another challenge.

FORBES: WORST CALL EVER Should Finally Take Baseball Into 21st Century (Instant Replay)