legitimate user的用法和樣例：
例句
- It is wise to be mindful of your legitimate users as you implement security measures.
所以在你實現安全措施的時候，留心合法用戶的反饋是很明智的。 - They can be replayed because a service cannot determine that the person sending the ticket is actually the ticket's legitimate owner.
因為服務不能確定票的發送者是不是合法用戶。
