And measuring something really closely is the first step to figuring out where you can make improvements, save money, and keep your business humming through good times bad.

仔细认真测算相关数据是清楚掌握产品改进、省钱、使业务无论什么时候都能保持正增长的第一步。

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It was not fearsomely heaven-made, like thunder or lightning or howling wind, but something felt through their feet, a resonance, as if the earth was humming.

NPR: E.L. Doctorow on Sherman and 'The March'