To have to go to bed by day?

却不得不在白天上床睡觉？

The children are going to have to be very brave.

孩子们必须非常勇敢。

To become an astronaut in China, you have to have 1,350 hours of flying experience.

在中国成为宇航员，你需要有1350小时的飞行经验。

You have to have one only to take books out.

你必须要用这个才能把书取出来。

And I'm definitely not saying that you have to give up one to have the other.

明显地，我不是说你必须放弃一个才能拥有另一个。

From now on, you are going to have to stay away from salty food.

从现在开始，你必须远离咸的食物。

You're going to have to learn to control your temper.

你得学会控制自己的脾气。

You just have to have faith.

你只需要持有信念。

You have to have some buffers.

你必须有一些缓冲。

I think they have to have a path.

我认为他们必须有一个路径。