或可以用来谈论一个人的家庭背景， 如国籍或社会地位。 The plane began its descent to Beijing Airport. 飞机开始向北京机场降落。 There is a gradual descent to a big sea. 有一片斜坡缓缓延伸到大海边。 All the investors are of Asian descent. 我们所有的投资人都是亚裔人士。

It means that sth. is considered to be of an acceptable standard or quality; or sth. is morally correct or acceptable; or sb. is honest and behaves in a way that most people approve of.

Team17今日公布了《异形繁殖》系列作品《异形繁殖3：侵袭(Alien Breed 3: Descent)》的发售预告片和设定图，同时公布该作将于11月17日通过Steam和XBLA平台发售，售价为6.99英镑，9.99美元或8.99欧元。该作登陆PC及Xbox360平台。