My grandfather Ruby once told me that time is the most precious commodity; I never understood what he meant until 2002.

我的祖父鲁比曾对我说过，时间是最贵重的商品；直到2002年，我才明白他的意思。

youdao

Once the parrot understood, he started shouting in the middle of the show.

鹦鹉看懂了之后，就开始在节目中间大喊大叫。

youdao

Once you've understood why an organization needs SOA, he states that "SOA is a form of solution it can only be effective if it solves the problem at hand."

在你已经理解组织需要SOA的缘由之后，他表示：“SOA是一种解决方案形式，只有在它解决即将出现的问题时，它才会变得高效。”

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He said once the people understood that it was a war for democracy, they would win it quickly.

VOA: special.2009.11.12

And once he did that, both he and many other scientists, could then, once they understood what caused the fluorescence, make little changes to the actual protein, and tune what the properties of that fluorescent protein were.

而且一旦他做成了这个，一旦他们弄清楚了是什么导致萤光，他和其它很多科学家，就可以对蛋白质做微小的改变，调节蛋白质的荧光性质。

麻省理工公开课 - 化学原理课程节选

But once he's understood a company and bought it, he leaves the chief executive to run it.

BBC: Mr Buffett played the ukulele at this year's Berkshire AGM

Once Ravi understood that he would be living with Clementi, not Picone, he felt that he knew these essential facts: his roommate was gay, profoundly uncool, and not well off.

NEWYORKER: The Story of a Suicide

Once he heard about the accident, he knew it was his duty to help, since so few people understood how to run reactor systems.

ECONOMIST: Cleaning up Japan��s nuclear mess