You should go to bed earlier.

你应该早点去睡觉。

It's bedtime, you should go to bed.

就寝时间到了，你该上床睡觉了。

You should go to bed more when you're sick.

你应该在生病时多上床睡觉。

If you want more energy, you should go to bed early.

如果你想有更多的精力，你应该早睡。

Susan: You should go to bed early.

苏珊： 你应该早点睡觉。

You are a good children, so you should go to bed and get up early

你是个好孩子，你应该早睡早起

One is that you should go to bed and get up at the same times every day.

一种观点认为你应该每天在同一个时间睡觉，就像在两头都装上闹钟，你必须每天睡同样多的时间。

Susan: You should go to bed early. You shouldn't think about it now. You don't have to decide tonight.

苏珊：你应该早点睡觉。现在你不该想这些。你不必在今晚决定。