[转载]BBC英语短语 - A shot in the arm

A shot in the arm:

Something that has a sudden and positive effect on something, providing encouragement and new activity.

“A shot in the arm” 的字面意思是 “打在胳膊上的一针”，但实际上我们用它来比喻 “一个可以快速刺激并改善某件事情的行为”，类似于汉语里常说的 “一剂强心针”。

例句

The extra cash will give the theatre business a much-needed shot in the arm.

这笔额外的现金将会给剧院的生意打上一剂急需的强心针。

Opening a new shopping centre was a shot in the arm for the run-down city suburb.

新购物中心的开张如同给这个破败的市郊地区打了一剂强心针。

Getting a new hands-on manager for the department was a shot in the arm for the demoralised team.

给这个部门找一位亲力亲为的新经理对这个士气低落的团队来说，是一剂强心针。