It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time humans had formed even semi-permanent settlements.

我们永远也不会知道这种计算能力是何时、如何发展起来的，但可以肯定的是，在人类形成半永久定居点的时候，这种计数法已经发展得很好了。

youdao

youdao

youdao

But he says that is not what the United States expects to accomplish by this time next year, when President Barack Obama has said he will begin to withdraw U.S.troops.

VOA: standard.2010.07.22

And by the time I'm a million, I no longer remember what I was doing when I was a lad of 500,000.

等我活到一百万年，我不记得,50万年前做过什么。

耶鲁公开课 - 死亡课程节选

In each set, the first plague is accompanied by a notation of the time in the morning. It's also introduced by God's speech, when God says, "Present yourself before Pharaoh," and to do this in the morning.

在每一组中，第一次瘟疫都是发生在早上,可以从上帝的话中看出来，上帝说，今天早晨，“到法老面前去“

耶鲁公开课 - 旧约导论课程节选

Chris Moore, NASA's deputy director for advanced exploration systems, said the space agency is working on engines aimed at cutting the trip time by the 2030s, when it hopes to send humans to Mars.

CNN: SHARE THIS

It failed to negotiate a seat on the governing council of the Champions League - run by the BCCI, CA and CSA - at a time when it was seduced by the lure of Allen Stanford's ill-fated Twenty20 operation in Antigua.

BBC: Counties hold out hope over Champions League dates

By the time we--at a time when we suffer disproportionately from all of these diseases, such as heart disease, even some forms of cancer now because of our obesity and overweightness, hypertension, Type II diabetes, we really need to be working on ourselves from the inside out.

NPR: Roundtable: Black Women and Body Image