风雨衣，这种当时世界上最耐用的晴雨两用外套，被普及推广开来；据估计，1914年到1918年间参战军官们共穿用了50万件军用风雨衣。

As the trench coat, then the world's most durable weather coat, was popularised, it is estimated that between 1914 and 1918, 500,000 military trench coats were worn by combatant officers.

youdao

当时人们对这种疾病的起因几乎一无所知。

As yet little was known of the causes of the disease.

《牛津词典》

该研究小组找出了39个传统行为，一些群体有这些行为，但另一个群体却没有。当时，这种模式只存在于人类之中。

The team identified 39 of these traditions that are practiced by some communities but not others. This is a pattern that, at the time, hadn't been seen in any animal except humans.

youdao

The time was in the early 70s, so factory farming was not well-known, was not as dominated as it is today, but it still existed.

那时是70年代早期，工厂化养殖并不为很多人所知,也不如今天这样占主导地位，但当时已经出现了这种方式。

普林斯顿公开课 - 人性课程节选

And so it wasn't all that many years ago frankly that you know, certainly, people in this class were still using these things.

这跟多年前完全不一样，当时我们用的就是现在我手头的这种。

哈佛公开课 - 计算机科学课程节选

I suppose what I'm really saying is that the word "hermeneutics" wasn't available, and the idea that there ought to be a sort of a systematic study of how we interpret things wasn't really current.

我想说的是“诠释学“这个词,不是一开始就有的，而应该系统地学习,如何解释事物,这种思想也当时也是没有的。

耶鲁公开课 - 文学理论导论课程节选