【俚语】

On the ball 机灵；反应快

【例句】

I'm so glad that my assistant is always on the ball because I'm too scatterbrained to manage my schedule on my own.
很高兴我的助理总是反应很快。因为我太粗心了，不能安排自己的日程。

Start the ball rolling 着手干，开始做

【例句】

I think it will be easier to become comfortable driving now that I've started the ball rolling with driving lessons.
既然我已经开始学开车了，我感觉现在开会更加适应一些。

Pick up the ball and run with it
（尤指在他人不能完成时）接手做某事

【例句】

We had a very vague idea of what we wanted, but the marketing team just took the ball and ran with it.
我们还没想清楚自己想要什么，但营销团队已经接过手去开始忙活了。

Drop the ball 犯错误

【例句】

I think she really dropped the ball when she decided to quit that promising internship.
当她决定放弃那个前景不错的实习机会时，我感觉她是犯了个错误。

keep your eye on the ball
集中注意力

【例句】

We’ve got to keep our eye on the ball if we want to remain successful.
如果我们想保持成功，我们就必须集中精力。