The military aid always has to be within a certant disatance of the president in case of emergency.

军事助理经常需要,待在总统的一定范围内,以防出现紧急情况。

普林斯顿公开课 - 国际座谈会课程节选

And I'm also like everybody else on emails; and I'll get your emails, panic emails at 3:10 in the morning and I'll reply at 4:45. So, it goes like that.

电子邮件我和其他人一样,我会收你们的邮件,早晨3:10紧急邮件,我会在4:45回复,所以就是这样

耶鲁公开课 - 1871年后的法国课程节选