反过来，这种转变又给“知识工人”带来了前所未有的好处，这是一个新的阶层，由富有、受过教育、流动性强的人组成，他们认为自己是卖方市场上的自由代理人。

That shift, in turn, place an unprecedented premium on "knowledge workers", a new class of wealthy, educated, and mobile people who view themselves as free agents in a seller's market.

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与其他人口相比，老年人更有可能拥有自己的房子，他们的流动性也比租房的人小，因为后者可能转移到新的就业市场。

Compared with the rest of the population, older people are also more likely to own their own homes and be less mobile than renters, who can move to new job markets.

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前一组人有很高的流动性，而后一组人则没有那么幸运。这说明，不伺收人人群之间的流动正在减慢。

The earlier group enjoyed a high degree of mobility but the later one was less fortunate, suggesting that movement between income groups is slowing down.

youdao

So Roman slavery and the freedom of that was actually one way that a few people in the Ancient World recognized some kind of social mobility, which was very rare in the Roman Empire.

所以罗马奴隶制以及奴隶释放制,被古代部分人认为是,某种社会阶级流动，在罗马帝国很少见。

耶鲁公开课 - 新约课程节选

According to the Priestly source, blood, the blood that courses through one's veins, represents the life force.

根据祭司资料，血,在人血管中流动，代表着生命的力量。

耶鲁公开课 - 旧约导论课程节选