For sure you will watch your opponents racket face, speedily determine where it is going, and off you will go like a speeding bullet in the direction of the ball!

请注意！肯定你将看着对手的拍面，而后尽快确定它将把球击向哪里，而你将朝球的方向象一颗超速行驶的子弹一样奔去！

youdao

Each racket is tested using three different racket speeds and six different impact locations on the face of the racket to identify the optimal power point on the racket head.

每个球拍将在三种不同的球拍速度和球拍表面六个不用的受力点进行测试，以测定球拍前端最佳的受力点。

youdao

What hits the ball? Quickly, answer. It's not the racket, it's the racket's face, or strings. Keep this in mind.

什么击打球? 快， 马上回答。 不是球拍， 而是拍面， 或者说球线。 记住这点。

youdao

On Sunday he went around the ball a lot and when you do that you give up a lot of court space, so your success depends on your balance when hitting that shot as that is what operates the face of the racket.

CNN: Federer 'is the greatest ever tennis player'