密钥的生成由发起请求的用户自己完成。

The key generation is performed by the requesting user.

youdao

事件：由发起操作的用户或系统设置的触发器。

Events: Triggers that are set off by user or system initiated actions.

youdao

他把所有的指控归因于由其政敌发起的诽谤活动。

He puts all the accusations down to a smear campaign by his political opponents.

《柯林斯英汉双解大词典》

And so it really, not the course but the idea for the course, was an evolution three years four years ago, really, when I was involved in something called the Civic Values Task Force, which was started by Princeton Project 55.

所以说，不是这个课程,而是这个课程的设想，是在三四年前形成的，当时我参加了,公民价值专责小组，由普林斯顿大学55工程发起。

普林斯顿公开课 - 人性课程节选