Some cells, like nerve cells, only divide seven to nine times in their total life.

有些细胞在它们的一生中只分裂7到9次，例如神经细胞。

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Frequency of crying varies widely: some shed tears at any novel or movie, others only a handful of times in their lives.

哭泣的频率差别很大：有些人在看小说或电影时都会流泪，有些人一生中只会流几次泪。

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The palimpsest then went through some more tough times, but eventually it ended up in an art auction where was bought and then donated to an art museum in Baltimore, for conservation and study.

这份重写本后来经历了一些艰难的时期，但最终，它在一次艺术拍卖会上被买走，然后捐给了巴尔的摩的一家艺术博物馆，用于保护和研究。

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Even in hard times and some might say especially in hard times people still show concern about others.

VOA: special.2009.11.02

it's not as good as helping debug, sorry, that's the wrong way of saying it's not as good at catching some things before you run them, it is easier at some times in debugging as you go along on the fly.

它在帮助我们调试方面可能不是太优秀，对不起，这么说有点不正确,它在运行前捕捉错误,可能不是那么优秀，可能边运行边调试,会更容易一些。

麻省理工公开课 - 计算机科学及编程导论课程节选

Well, I mean, just to defend Locke, he does say that there are some times in which you can't take another person's land.

要为洛克辩护的话，他的确说到了，几种情况下,你不能掠夺他人的土地。

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"Customers for whom we were regularly blocking about 1, 000 to 2, 000 scrapes a month are now seeing three times or in some cases 10 times as much scraping, " says Marino Zini, managing director of Sentor Anti Scraping System.

WSJ: 'Scrapers' Dig Deep for Data on the Web

Margins high enough to build muscle in good times, and maintain at least some profitability in bad times.

FORBES: Teaching an airline to fly

They bit the bullet and realised that they were in for some hard times, but that in the long run it would pay dividends.

BBC: Q&A: Merv Hughes