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

VOA: special.2009.04.12

And then, on the top of 3, we get another example: "In other words we've got to get on the ball, darling, what I'm saying, otherwise it'll be fluctuating and lack of true knowledge or crystallization of our plans."

然后，在第三页上面，又有一个例子：,换句话说我们必须去这个舞会，亲爱的，我是说，不然就会变得波动又缺少真知识,或使我们的计划结晶化“

耶鲁公开课 - 1945年后的美国小说课程节选

There's just a kind of a stand and you put the ball on the stand and then you just hit it.

只有一个台子，你只需把球放在台上，然后击打它。

会打棒球吗？ - SpeakingMax英语口语达人

And they are extremely proud of what they're doing. But all of us volunteers,workforce, everybody involved has to keep their eye on the ball, work hard right to the end.

VOA: standard.2010.02.21

On the other hand, as you shoot to the middle, since you're kicking the ball hard, you're slightly more likely to score.

另一方面,如果你射向中路,因为你踢球的力道较大,你反而更容易进球

耶鲁公开课 - 博弈论课程节选

(JANIS JOPLIN - "BALL AND CHAIN") The music ended on Sunday night or,rather,the early hours of Monday, August eighteenth.

VOA: special.2009.08.10

And this dimple is later forming a vesicle, a round ball, that goes on and forms the ear.

随后形成一个圆球状的泡囊，直至发育成耳朵。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

His records include bouncing a ball the fastest for one mile,or 1.6 kilometers, on the Great Wall of China.

VOA: special.2011.05.16

Tim Wakefield Tim Wakefield on the DL right now throws a lot slower, because he has that tricky knuckle ball, he doesn't need to throw as fast.

现在受伤停赛的,投的很慢，因为他有一个很难处理的指节球，他不需要扔的很快。

麻省理工公开课 - 化学原理课程节选

They count down the final seconds to midnight as they watch a brightly lit ball slide down a pole on top of a tall building.

VOA: special.2009.12.28

and you've got to hit a ball which is on the ground with a sort of croquet mallets.

你要用一个类似木槌的东西去打击地上的球。

知道马球吗？ - SpeakingMax英语口语达人

Mr. Mindon saw a letter crushed into a small ball on the floor.

VOA: special.2009.01.31

I think all those goals are still possible, but I think that as a consequence to the war on Iraq, we took our eye off the ball.

VOA: special.2009.02.21

Mister Mindon saw a letter crushed into a small ball on the floor.

VOA: special.2010.05.29

"I don't really do a whole lot. I normally just spend time with family, go out to eat,hang out, wait for the ball to drop on TV."

VOA: special.2009.12.28

On Tuesday, there was a large party called the Halloween Ball.

VOA: special.2009.10.30

Then he would fall down on the floor again like a ball of dirt and start rubbing the side of his head with his back foot as if he had no idea he had been doing any more than any frog might do.

VOA: special.2009.08.29

The U.S.sealed the victory in the 72nd minute through Clint Dempsey, who pounced on a loose ball in front of the Spanish net and deposited it in the goal to double the American lead.

VOA: standard.2009.06.24