It is not necessary to enroll before the course starts.

不需要在课程开始前注册。

youdao

Please enroll with the secretary before Friday this week.

请在本周五之前到秘书处登记。

youdao

So you'll just enroll in a thesis seminar for the second semester.

所以你只需要在第二学期报名注册一个论文研讨会就可以了。

youdao

They do not have Thai citizenship or language skills - making it difficult for them to enroll in Thai schools.

VOA: standard.2010.02.24

Now, the problem, or one of the challenges with clinical trials of vaccines is that you have to enroll a lot of patients into clinical trials because only a few are going to get sick in any case, only 20 out of 100,000.

现在的问题是,这也是疫苗临床试验的挑战之一,临床试验必须包括足够多的病人,毕竟只有一小部分人会被传染,十万人里面只有二十人被传染

耶鲁公开课 - 生物医学工程探索课程节选

President Obama said the government will make it easier for workers at small businesses to automatically enroll in retirement savings plans.

VOA: standard.2009.09.05

Mr. DICKSON: It asked--the first question asked, is the patient eligible to enroll in Medicaid?

NPR: Aid Arrives at Arizona Hospital as Immigrants Dry Up

It's money for community health centers to help enroll uninsured people into the exchanges.

NPR: Nearly Half The Country Doesn't Know Health Law Exists

He won by a 23% margin among voters 18-29--just the people who need to enroll.

WSJ: Crunch Time