检验它、挑战它。
To really help your brain stay young, challenge it.
为了帮助你的大脑保持年轻，挑战它。
Don't yield to misfortune. Be brave and active to challenge it.
别向不幸屈服，勇敢、极地去迎接挑战吧。
Then challenge it to a fight in the dark, on its own turf! (gasp).
那么挑战它在黑暗的地方打仗，在它自己的地盘上！
After you've accepted a negative thought, force yourself to challenge it.
在接受一种消极的想法后，迫使自己挑战它。
Every time a thought pops up and has words like "should" or "must," challenge it.
每次出来一个想法，有着类似于于“应该”“必须”这样的字眼，那么不妨改变一下吧。
This is a grand challenge for our age and it may require an "irrational" response.
这是我们这个时代面临的重大挑战，为此可能需要“非理性”的回应。
John found it a challenge to satisfy the boss.
约翰觉得让老板满意是一个挑战。
It was a direct challenge to the president's authority.
这是对主席权威的直接质疑。
It would have been political suicide for him to challenge the allegations in court.
假如当时他在法庭上质疑那些指控，那无异于自毁政治前程。
It is a difficult task, but I'm sure he'll rise to the challenge.
任务很艰巨，不过我相信他能应付自如。
"It will be a challenge," said Professor Southwood.
“这将是个挑战。”索斯伍德教授说。
It became a challenge, a game, regardless of whether he was married or with someone.
它变成了一种挑战，一个游戏，不管他是否已婚或者有女朋友。
It could be a challenge, but who said testing was easy?
但这是一项挑战，谁能说测试工作是简单的呢？
A: It is a huge challenge for us.
答：这对我们是一个极大的挑战。
I like the challenge and possibilities that it can bring.
我喜欢这个方法带来的挑战和机会。
It was really challenge to speak before so lare an audience.
给那么多的人讲话对我来说的确是个挑战。
这是一个严峻的挑战。
So that's the biggest challenge. I'm challenging it, are you?
所以这就是最大的挑战，我正在挑战，你呢？
It is a challenge that can and must be faced.
这是一个可以而且必须面对的挑战。
It is a challenge even most pro golfers would fail.
这是个甚至连职业高尔夫球手也会失败的挑战。
It is a challenge even most pro golfers would fail.
这是个甚至连职业高尔夫球手也会失败的挑战。
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