It's the way, for example, that foreign molecules or antigens get presented to cells of your immune system in order to start the process of making an immune response, so sometimes a cell/cell interaction.

通过这种方式,外源分子,或者说抗原,进入到免疫系统的细胞中后,就会开启免疫反应过程,有时候就是细胞之间的相互作用

耶鲁公开课 - 生物医学工程探索课程节选

I needed about an half hour ahead start on him in the office in order to be sufficiently prepared to visit with him which I did every morning shortly after he arrived.

我需要在他之前,半个小时前就开始工作,为的是做好充分准备,跟他谈话,我每天早上,他到达办公室后都要跟他谈。

普林斯顿公开课 - 国际座谈会课程节选

In order for a more or less just society to remind me of justice itself, so that I can start thinking about the nature of justice itself, I have to somehow have already been acquainted with perfect justice.

如果一个较为正义的社会,能让我想到公正本身,能让我思考公正的本质,我起码需要,对完美的正义有所认识

耶鲁公开课 - 死亡课程节选