The seeds must be carefully chosen; they must fall on good ground; they must be sedulously tended, if the vivifying fruits are to be at hand when needed.

要想在需要的时候可随手摘取充满生机的果实，那就必然从精选良种做起，然后将其植入肥沃的土地，还需要勤勉地护理。

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To restore momentum the new outsiders must show that they can win power and use it-and at the same time not fall into the mire that has engulfed their predecessors.

为了恢复原有的动力，政界新人必须向公众表明，他们可以赢得并合理使用权力，与此同时不会陷入曾经吞噬了前人的泥潭。

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Mean quantum time should be close to 500 microseconds, and the maximum quantum times must be monitored to ensure they fall within the acceptable pause times for the RT application.

普通的时间量接近500微秒，而且必须对最大的时间量进行监控以保证它们能够为RT应用程序提供可接受的暂停时间。

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Apple tells its customers they must not download an app if they fall below the stated age limit - but users can click away the warning message.

BBC: Twitter's Vine app gets adult rating on Apple store

The simple truth--one that bubble theorists consistently ignore--is that there's no law that says markets must collapse if they rise too much, just as there's no law that says markets must rebound if they fall too much.

FORBES: Magazine Article

So when tax revenues plummet, as they did during and after the recession, spending must fall in concert.

ECONOMIST: The public sector is still hobbling the economy