n.领地；领域；范围
Each of her cousins had charge of his own domain. 她的每一个亲属主管着自己的领地。
As soon as you create an account for the user, the user can participate in a secure domain. 一旦您为用户创建了一个帐号，用户就可以进入安全域中。
The doctor works in the domain of public health. 医生在公众健康范围内工作。
n.时域
