但你是否知道 meaning in Chinese

but did you know,

But do you know that you are the world to one and bearing a grudge to one who has been injured
但你是否知道你永远是我的世界，你永远是受伤的我的疗药？
English is the language of international business communication , but do you know how to make a good impression when writing in english
英语是国际商业交流的通用语言，但你是否知道如何让你的书面英语给别人留下深刻的印象呢？