既然你已经准备好制作你自己的机器人了，访问我的50美元制作机器人的教程按照说明一步一步来做。

Now that you are ready to build your own robot, visit my The $50 Robot Tutorial for step-by-step instructions!

youdao

既然你已经长大了，就必须自己做这件事。

Now that you have grown up, you must do it by yourself.

youdao

既然你已经衡量了问题的两个方面——回报和代价——接下来就是你做决定的时候了。

Now that you've weighed both sides of the issue — your payoff and your tradeoff — it's time to make a choice.

youdao

You've already decided, it's like a verbal contract.

你既然已经做了决定，就相当于是口头契约。

耶鲁公开课 - 公正课程节选