So, even though we don't have the lithium anymore, we still keep that atomic number 7 around.

尽管现在它不含锂了，但是作为原子量的七，还是在一定程度上保留了下来。

麻省理工公开课 - 化学原理课程节选

I don't know, to just hold on to and to have and it's, they've had it for years, you know, like.

坚持经过这么多年保留下来的东西，

观众是我的动力 - SpeakingMax英语口语达人

But they certainly often preserve older cultic traditions and priestly traditions as well.

同时它们也将古老的,宗教崇拜传统和祭司传统保留了下来。

耶鲁公开课 - 旧约导论课程节选

Because on second exposure there's another population of cells that I haven't mentioned before that remain after the primary exposure and those are called memory cells, they're down here.

因为在再次免疫中,有另外一些细胞,我之前并没有提到过它们,在初次免疫结束后保留下来的细胞,被称为记忆细胞,它们在下面

耶鲁公开课 - 生物医学工程探索课程节选

That is because in the Dark Ages we don't have any writing.

这是因为在黑暗时代,没有什么保留下来的文字

耶鲁公开课 - 古希腊历史简介课程节选

And there is a preserved steam railway down

而且那里有一个保留下来的蒸汽火车，

自行车是我的朋友 - SpeakingMax英语口语达人

But it came down to this theme that still is so important, and was already so important, which is, what is Russian that should be kept uniquely Russian and closed to outside influence?

但是归根结底,这牵扯到一个相当重要的主题,那就是俄国的哪些特质,该不受外界影响而保留下来

耶鲁公开课 - 欧洲文明课程节选

Greek language, culture, and religions, different religions and the syncretism, - Greek education, the polis structure-- all of these things remained in the East throughout the Roman rule of the East, all the way up until the time you had a Christian emperor with Constantine, and later.

希腊语，文化，宗教，不同宗教，融合，希腊教育，希腊城市结构-,这些在罗马统治东方时,都保留了下来，直到出现了,信仰基督教的帝王君士坦丁一世及其他。

耶鲁公开课 - 新约课程节选