We must do it whole-heartedly, not half-heartedly.

我们要全心全意地做这件事，而不是半心半意。

《新英汉大辞典》

We must do it, we must take to the streets.

我们必须行动起来，我们应该走上街头。

youdao

This matter is immediate, we must do it now.

这事刻不容缓，我们必须现在做。

youdao

"They are right. Of course we must do that. It is a scandal in particular that they still lack enough helicopters to move around in southern Afghanistan.

VOA: standard.2009.07.13

But we must do it in a manner that's consistent with our shared values.

WHITEHOUSE: VP's Remarks to London Cyberspace Conference

"I would think it would be very surprising if a lot of people have been mentioned didn't face action, but we must do it by due process, " he said.

BBC: Graft probe names top Kenyan officials

And we must do it now.

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