His actions were construed as a challenge to authority.

他的行为被解释为对权威的挑战。

Modern technology poses a challenge to individual privacy.

现代科技对个人隐私构成了挑战。

The existence of shadow banking poses a challenge to traditional banks.

影子银行的存在对传统银行构成了挑战。

He committed to a month-long fitness challenge to improve his health.

他承诺参加一个为期一个月的健身挑战来改善健康。

It poses a challenge to seniors.

这对大四学生来说是个挑战。

It may constitute a challenge to computer programmers.

它可能对计算机程序员构成挑战。

I accepted his challenge to run a race.

我接受了和他赛跑的挑战。

The challenge to traditional conceptof Ceq.

叙述了对传统碳当量的挑战.

It would get pretty boring with no challenge to improve.

没有挑战去进步，会令人厌烦。

Exploring the outer space is a real challenge to mankind.

探索外层太空对人类是真正的挑战.