It offers the possibility of a double benefit—discouraging harmful activities, while also providing the government with revenue.

它提供了一种双重效益的可能性，既能阻止有害活动，又能为政府提供收入。

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They also get a double benefit, because their interaction is two-way.

他们也得到双倍的收益，因为他们的交流是双向的。

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People on the local fat accumulation, body weight, may also play a role, can be described as double benefit!

对局部脂肪堆积的人，可同时起到减肥塑身的作用，可谓一举两得！

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While too much sodium is associated with cardiovascular problems, too little potassium can have the same effect, so potassium chloride has a double benefit.

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The hope is that emerging-market banks will enjoy a double benefit.

ECONOMIST: The developing world��s banks are flourishing

The plan to invest some of the Social Security trust fund on Wall Street purports to address this: real assets would henceforth back the promise and, you might think, there is a double benefit because returns on Wall Street are higher than returns on the fund's existing portfolio of bonds.

ECONOMIST: Social Security meets Wall Street | The