That's a nice expression, be on the ball.

这是一个很好的表达，be on the ball。

There is a message written on the ball in different languages.

红球上有用不同语言写的文字。

Oho! ' said Fudge, bouncing up and down on the balls of his feet again.

啊哈！”福吉说着又在踮着脚蹦蹦跳跳.

To be on the ball at work.

在工作中精力充沛。

And that creates a smaller wake, that has less drag on the ball.

这样会产生更小的尾流，对球的阻力更小。

But another indicator of less drag on the ball is home run distance.

而棒球阻力减少的另一个标志是本垒打距离。

I'm sorry Li, I'm not really on the ball this morning.

抱歉，莉，今天早上我头脑不是很灵敏。

Similar to soccer, the rules bar players from using their hands on the ball.

与足球类似，足排球的规则禁止球员用手碰球。

And they're off, McCarthy dives on the ball, Harry Styles looking for his first target.

他们出发了。麦卡西飞身扑球，哈里·斯泰尔斯开始寻找他的第一个目标。

Someone who is on the ball is intelligent and able to do a good job.

一个人on the ball，那么这个人就很聪明，能做好工作。

All right, you ready, Vincent? Remember, keep your eye on the ball. Here it comes.

好了, 你准备好了吗, Vincent? 记住, 眼睛盯住球. 来啦。

On top of that, he's really on the ball when it comes to management too.

除此之外，他在管理方面也很在行。

It's not always easy to be on the ball, meaning focused on what you're saying.

想要“on the ball（专注于你所说的内容）”并不总是那么容易。

Your feet are in a similar position. All your weight is on the balls of your feet.

脚姿势相似。重心也都在你的脚上。但这两个表达有不同的目的与含义。

Here is one that comes from baseball: Keep your eye on the ball.

全神贯注。

Idiom, idiomatic, to be on the ball is to be alert, clever, sharp, in any situation.

习语，习惯用语，to be on the ball 是指在任何情况下都保持警惕、聪明、敏锐。

Yes, I love that it allows me to wake up quickly, and be on the ball at work.

是的，我喜欢它能让我挺神醒脑，在工作中精力充沛。

When you throw a nice spiral pass, gravity is only acting as a secondary force on the ball.

当你抛出一个漂亮的螺旋传球时，重力只是作为一个辅助力作用在球上。

" Quite correct, " said Professor Grubbly-Plank, hands behind her back and bouncing on the balls of her feet.

“非常正确，”格拉普兰教授说，两只手背在身后，一下一下地踮着脚尖。

When it comes to managing people, he's really on the ball.

谈到管理人员，他真的很能干。