You don't want to wait until it's too late to do something.

你不会想等到为时已晚的时候再去做些事情。

youdao

It's never too late to do something.

现在就行动。行动永远不嫌晚。

youdao

It is never too late to do something to protect our earth.

现在为保护我们的地球付出努力还为时不晚。

youdao

Because it was in the 1950's or so, maybe the late 1940's, that people started to discover lithium, even though it had no natural function, it did do something in our bodies.

因为在二十世纪五十年代左右，可能是四十年代末期，人们开始发现锂，尽管不参与人体的正常生理活动，但是它确实会对我们的身体产生影响。

麻省理工公开课 - 化学原理课程节选

"It's too late to do something about it in this World Cup, " said Eriksson.

BBC: World Cup 2010: Fabio Capello slams 'worst ever ball'

It might just be a too little, too late effort to do something about the larger problem of nonnative species.

CNN: Fish tale

There remains, even at this late date, an opportunity to do something big and good for the American people.

WHITEHOUSE: Press Briefing