But some things are personal or private, and questions about them are not polite.
但是有些事是私人的,问这些方面的问题是不礼貌的。
The mailbox is over there.
邮筒就在那儿。
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.