You can't take the exam unless you're registered for the class, and we need to make sure we can verify that.

否则你是不能参加这次考试的,除非你注册了这门课，而我们需要确定你能证实这一点。

麻省理工公开课 - 化学原理课程节选

And Rutherford, who I have already described to you as being a little bit colorful in his language, backed up Bohr on this.

而卢瑟福，就是以前我跟你们提过的那个,语言丰富生动的人，在这一点上证实了波尔的理论。

麻省理工公开课 - 固态化学导论课程节选

And the elections in the early 1880s would certainly make this clear.

十九世纪八十年代初的选举证实了这一点

耶鲁公开课 - 1871年后的法国课程节选