You must take good care of yourself等于You...must.yourself...

You must take good care of yourself.
= You must look after yourself.
译文：你必须学会照顾你自己.
解析：take good care of = look after 照顾；照看
再问： yourself后还有一个空格
再答： carefully 为副词，小心地 可有可无，修饰谓语动词 注： take care of = look after 照顾；照看 take good care of = look after carefully 悉心照顾