You must confine yourself to your room, on pretence of a headache, when your stepfather comes back.

你继父回来时，你一定要假装头疼，把自己关在房间里。

Do not confine yourself to the Illustrious of those Countries through which you pass.

不要局限于你所经过的那些国家的显赫人物。

It will fatigue you less, I think, if I ask you questions and you confine yourself to answering them.

我想，如果我问你问题， 而你只回答问题， 你会不那么疲倦。

You don't just have to confine yourself to these staple colors of menswear, however, case in point, the more adventurous pairing we'll be discussing today, pairing together blue and red.

你不必局限于男装的这些主要颜色，然而，举个例子，我们今天要讨论的是更具冒险精神的搭配， 蓝色和红色搭配在一起。