这是第一个使用脏字并且裸体上台的演出。

It was the first show to use the F-word and show nudity on stage.

《柯林斯英汉双解大词典》

你知道，这是第一个问题。

That's the first question, you know.

youdao

考古学家发现，地位较高的人的骨架往往比地位较低的人高几厘米，这是第一个真正的线索。

The first real clue came when archaeologists discovered that skeletons of higher-status individuals tended to be several centimeters taller than those of people of lower states.

youdao

I think that word "see" deserves the accent there, and so it's--the first unit of sound isn't quite normative.

我觉得“看“是重音，这是第一个音律不规则的地方。

耶鲁公开课 - 现代诗歌课程节选

Otherwise I'm going to check to see is the first and last, there's that - 1 indexing, is the first and last element of the string the same?

是第一个还是最后一个,这就是这边-1的索引内容，这个字符串的第一个,和最后一个的内容是否相同呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

So he said, I guess maybe it is my idea I was the first person to write it up.

我斗胆以为这也许是我的想法,有可能真是我第一个将其记录

耶鲁公开课 - 金融市场课程节选