这个平安夜是我第一次听他说捕鲤鱼的故事。

That night was the first time I heard about him catching the carp.

youdao

第二天是我第一次到法校的日子。

The next day I went to the law school for the first time.

youdao

因为这绝对是我第一次听说方言。

For it was positively the first time I had ever heard a dialect.

youdao

So now, the enzyme is locked up with being built, and the penicillin has effectively killed the bacteria.

所以这是我第一次感受到,我想在单个原子的层面上思考这些分子,所以这时我的专业转到了化学方向。

麻省理工公开课 - 化学原理课程节选

I remember my first exposure way back in the 60s was a photo of the Biafra famine you remember in the civil war in Nigeria.

我记得我第一次感受到贫困，是在60年代,那是一张关于尼日利亚饥荒的照片,你应该记得，是尼日利亚内战期间。

普林斯顿公开课 - 人性课程节选

OK, there's the first run, I'm going to take a different list.

好的，这是第一次运行，我要测下另外一个列表。

麻省理工公开课 - 计算机科学及编程导论课程节选