According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between most points on Earth in under two hours.

根据其支持者的说法，一种新型飞机掠过大气层，可以在两小时内飞到地球上的大多数点。

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From a certain viewpoint, the retired farmer would be "skimming off the top" every time he ate an ear of corn harvested after he no longer worked the fields himself.

显然，退休的农民不再工作后，所吃的每一分粮食都是“不劳而获的”。

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One reason is that building paywalls has become easier: Press+ and Google’s One Pass will collect online subscriptions on behalf of newspapers, skimming a little off the top.

一个原因是建立付费墙更加容易：Press+和谷歌微支付系统将代表报业争取用户，从中赚取佣金。

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Sailing on San Francisco Bay rather than miles out on the ocean, Oracle envisioned the 72-foot cats wowing both spectators lining the shore and TV viewers alike by skimming across the top of the waves.

NPR: America's Cup Fatality Raises Safety Questions