To do this you need to react quickly.

要做到这一点，你需要快速反应。

youdao

Others react quickly and there's no mistaking how they feel.

另一类型反应迅速，也没有误导自身的感想。

youdao

We often react quickly to incoming email, almost like the phone ringing.

来邮件时，我们反应很快，就像来电话时一样。

youdao

"So,when an event like this occurs, it is incumbent upon a Democrat to react quickly and decisively, and Obama failed to do it."

VOA: standard.2010.01.06

There are two mountains in the distance. The light was changing quickly, so I had to react so quickly.

VOA: standard.2009.12.15

Defoe could not react quickly enough to steer his follow-up into an empty net.

BBC: Tottenham 0-0 West Ham

The independence of America's big houses has helped them react quickly to volatile markets.

ECONOMIST: Out of their league?

That way they can react quickly to feedback and implement changes quickly without upsetting a lot of users.

BBC: Google+: The new Facebook rival?