[] () used to describe a style of management in which employees are encouraged to bring any problems directly to their managers开门政策（鼓励员工有任何问题都可以直接向其经理提出的一种管理模式）ⓘ Open-door refers to the idea that the manager's door is always open, not closed, so people can go in at any time.open-door 是一种理念，指的是经理的门永远是开着的，所以员工任何时候都可以跨进去。 () used to describe a situation in which imports or people can come into a country freely门户开放政策；对外开放政策