有一次考试我甚至拿出一瓶沙子问考生，让他们告诉我这种沙子采集地的特征与成因。

I have occasionally taken in sand to a student exam and said, 'Tell me about this beach.'

youdao

我们下周二有一次考试，下周五还有两次。 考完后，春季学期就结束了。

We will have an exam next Tuseday, and two exams next Friday, After the exams, the spring term will be over.

youdao

有一天，一位教授走进教室，告诉学生们他们马上要进行一次考试。

One day a professor entered the classroom and told the students they would have a test right away.

youdao

Anyway we have our second mid-term exam on Monday and it will be like the first mid-term but it will be less mathematical.

无论如何，我们在周一会有我们第二个期中考试,并且它将会像第一次期中考试一样,但是数学方面会涉及的更少。

耶鲁公开课 - 金融市场课程节选

There is a Midterm and there is a Final.

期中和期末我们各有一次考试

耶鲁公开课 - 心理学导论课程节选

We have two mid-terms and one final.

我们有两次期中和一次期末考试

耶鲁公开课 - 金融市场课程节选