Double benefit 一举两得
double benefit loss 双重利益损失
Really Double Benefit Ah 真一举两得啊
A Double Economic Benefit 带来双重经济效益
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。
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。
Capturing the resulting methane has a double benefit. As well as yielding energy, it also prevents what is a potent greenhouse gas from being released into the atmosphere.
收集发酵产生的沼气有两大益处：其一，能够获得能源；其二，能够阻止甲烷(一种强效温室气体)进入大气层。
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