对他们来说，这是挑战自我的机会。

So it was an opportunity for them to challenge themselves.

youdao

从这个意义上来说，所有的比赛都是对自我的挑战，让自己做到最高和最好。

In this sense, all competition is self-competition, rising to one's highest and best.

youdao

所以，对我们的挑战即是建立可以自我教育的网络来完成事情。

So our challenge is to create a network that can teach itself how to get this done.

youdao

所以，对我们的挑战即是建立可以自我教育的网络来完成事情。

So our challenge is to create a network that can teach itself how to get this done.

youdao