Short selling is selling borrowed stock in the expectation of buying it back later at a lower price, and keeping the difference.

卖空是出售借来股票，期望随后以更低价格购回，从而获取差价。

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The difference between capturing attention in the first place and sustaining it is nothing short of the difference between making a promise and keeping it.

首次获取专注与保持专注的区别和做出承诺与遵守承诺没什么两样。

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Keeping your head may make the difference between life and death. 2 When fire breaks out.

当发生火灾时，保持头脑冷静，而不是向安全出口拥堵，能够带来生与死的不同结果。

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This is because ulcers can deteriorate extremely quickly and a matter of hours can make the difference between keeping a foot and losing it.

BBC: Slow care leads to foot amputations

The accuracy, speed and precision of IT systems means the difference between winning or losing customers, keeping supply chains profitable, and solidly translating new concepts into revenue-producing products and services.

FORBES: Connect

Tragically, that omission can be the difference between someone keeping their foot and losing it.

BBC: 'Feet first' for diabetes patients