You don't have to knock—just walk in.

不必敲门—进来就是了。

You don't have to worry on that score.

那件事你不必担心。

You don't have to feel bad about relaxing.

你不必因为放松而感到内疚。

You don't have to lie to me. I know the score.

你不必瞒我。我知道是怎么回事。

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

你不必预付票款。

I know I was stupid; you don't have to rub it in.

我知道我当时很愚蠢；你不必老提这件事。

You don't have to worry about me. I'm a good swimmer.

你不必替我担心。我是一个游泳健将。

You don't have to sell out and work for some corporation.

你没有必要出卖自己为某公司工作。

You don't have to commit yourself now, just think about it.

你不必现在表态，只需考虑一下这件事。

You don't have to be a genius to see that they are in love!

傻子也能看出他们相爱了！

You don't have to call the midwife as soon as labour starts.

你不必刚开始分娩就叫助产士。

Make sure that you don't have to pay expensive excess charges.

确保你不需要支付昂贵的额外费用。

You don't have to do anything—just lie back and enjoy the ride.

你什么事也不必做—只管悠闲享受乘车旅行的乐趣好啦。

You don't have to be a pessimist to realize that we're in trouble.

不是悲观论者也能意识到我们有了麻烦。

You don't have to be alone with him and I don't think you ought to be.

你没必要和他单独相处，而且我认为你不应该和他单独相处。

You don't have to spend a fortune to give your family tasty, healthy meals.

让家里人吃味道好又健康的餐食并不需要花许多钱。

It is a very sociable diet to follow because you don't have to put anyone out.

这是一种非常大众化的食谱，因为你不会给任何人带来麻烦。

You don't have to sacrifice environmental protection to promote economic growth.

你们没有必要牺牲环保来促进经济增长。

You don't have to worry, and you don't have to think about problems in your life.

你不需要担心，你不需要考虑生活中的问题。

You don't have to carry too many things.

你不需要带太多东西。

You don't have to write these things in detail.

你不必详细地写这些东西。

The best thing about this is that you don't have to go anywhere.

最大的好处就是哪儿也不用去。

You don't have to run fast or for long to see the benefit.

你不需要跑得多快、多久，就能看到好处。

The good news is, you don't have to be a tree expert to take part.

好消息是，你不需要成为树木专家就能参与。

You don't have to eat the spoon.

你不需要吃勺子。

You don't have to run fast.

你不必跑得很快。

You don't have to ring the doorbell.

你不需要按响门铃。

You don't have to pay for your education.

你不需要支付教育费用。

You don't have to pay extra for breakfast.

你不必付额外的早餐钱。

You don't have to take a shower every day.

你不一定要每天都洗澡。