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

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50万年前我还是个小孩时做过什么。

youdao

The girl was then hit a second time by another van when an elderly trash collector came to her aid, according to some witnesses.

据一些目击者说，当一位上了年纪的垃圾清运员前来帮助她时，这名女孩再次被另一辆面包车撞倒。

youdao

It's worth repeating that this is only a prototype, so the minor bit of lag we experienced when navigating the display should be eradicated by the time it makes its commercial launch in Q3 2012.

ENGADGET: 3M Touch Systems 46-inch Projected Capacitive Display hands-on (video)

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

It had 30 people when he got his offer and 60 by the time, three months later, when he actually started working there.

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