这是第一种可以访问音视频文件的软件。

The software was the first to offer access to audio and video files.

《柯林斯英汉双解大词典》

第一种冰川流动被称为：基底滑动。

The first type of glacier flow is called: basal slip.

youdao

第一种是相当不干涉的方法。

The first was a fairly hands-off approach.

youdao

There's the vector, and again you'll see this in your handout, says I only took the first item.

你们同样可以在讲义上看到这个向量,意思是我只拿了第一种物品。

麻省理工公开课 - 计算机科学及编程导论课程节选

Scholars have proposed three possible models to explain the formation of Israel. The first is an immigration model.

学者们提出了三种可能的模型,来解释以色列的形成，第一种是移民模式。

耶鲁公开课 - 旧约导论课程节选

One is that he observed when people were machining cannon barrels, a lot of heat was generated, and there was a lot of work done.

第一种说法说焦耳发现,制作加农炮筒时，会产生大量的热，同时这中间有大量的做功。

麻省理工公开课 - 热力学与动力学课程节选