迷惑不解的日本银行家不必担心。

Japan's perplexed bankers need not worry.

她不必知道我在这儿。

She need not know I'm here.

你不必现在就走吧？

You don't need to leave yet, do you?

他们终于觉得不必为将来而担忧了。

At last they were able to feel secure about the future.

现在我可以步行去上班，而不必开车了。

Now I can walk to work instead of going by car.

那件事你不必担心。

You don't have to worry on that score.

你不必向我解释你的理由。

You don't need to justify yourself to me.

你明天不必早起。

There is no need for you to get up early tomorrow.

你不必为她辩解了。

You don't have to make excuses for her.

你不必预付票款。

You don't have to pay for the tickets in advance.

别担心，你一点也不必害怕我们。

Don't worry, you have nothing to fear from us.

我们有了应急的钱，这就不必担心了。

It's reassuring that we've got the money if necessary.

他没来，你不必感到意外。

You shouldn't be surprised he didn't come.