It was slow at first, barely noticeable.

起初很慢很慢，不易察觉。

Overall revenues hit $11.3bn last year, though growth is slowing at Uber's core ride-hailing service.

去年，优步总收入达到113亿美元，不过其核心的叫车服务的增长正在放缓。

Maybe you tend to be slower at doing things. You think about things a lot.

也许你做事往往比较慢。你想很多事情。

15.I know he is slow at understanding, but you have to be patient with him.

15.我知道他理解能力很慢，但你必须对他有耐心。

It was slow, at first.Humanity first reached half a billion people sometime in the 16th century.

一开始很慢。 人类在16世纪的某个时候首次达到五亿人。

And it turns out that this version people are slower at than the other version suggesting that their associations run one way and not the other.

事实证明，这个版本的人们比另一个版本慢，这表明他们的关联以一种方式运行，而不是另一种方式。

Sales were slow at first but it has gone on to become a beloved classic and was recognized by the New York Public Library as one of the 100 most important books of the 20th Century.

起初销售缓慢，但它后来成为受人喜爱的经典，并被纽约公共图书馆评为 20 世纪 100 本最重要的书籍之一。