Need to cool something extra-fast? New research suggests that lasers might do the trick.

需要急速冷却东西吗？新的研究表明激光也许能解决这一难题。

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What's more, demand for animal products in developing countries is growing so fast that meeting it will require an extra 300 million tons of grain a year by 2050.

此外，发展中国家对动物产品的需求增长如此之快，以至于到2050年时每年将需要额外增加3亿吨谷物才能满足需求。

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At fast food chains, avoid combo meals - they often have larger portions and extra calories.

在连锁快餐店，避免组合膳食，它们往往有较大额外的热量。

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It has an extra button for changing tracks and fast-forwarding through music CD selections.

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That chip supply is improving gives Apple fans the chance to have the fastest chip without the extra options--apparently, there are more of the fast chips than there are Superdrives.

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The optional, extra-cost, 4G LTE cellular-data capability made it feel like I was always on a fast Wi-Fi connection.

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