But some things are personal or private, and questions about them are not polite.
但是有些事是私人的,問這些方面的問題是不禮貌的。
The mailbox is over there.
郵筒就在那兒。
The administrative overheads of a business are low to the extent that everyone working in the business can be trusted to behave in a way that best promotes the interests of the firm.