"Say we wanted to know how much we'd need to reduce human-derived emissions of methane to cut its climate influence by half, " Montzka said.
“我们希望了解，我们需要人为减排多少甲烷才能够将气候变暖的影响减半，”Montzka说道。Equities nearly halved their losses after the Fed stuck with its ultra-loose monetary policy and said the economy was gaining traction.
在美联储公布利率决定后，股市跌幅几乎减半.美联储今日保持超宽松货币政策，且表示经济成长加速。Another worker, leaving in a thick black coat, said he had been employed in the same GAZ factory for 35 years and also seen his pay halved.
另外一名工人穿着厚厚的黑色外套走出工厂大门，他说自己已经在GAZ工作35年之久，目前薪水也已减半。He said his lenders have also clamped down on his spending and cut his salary in half.
他说，他的贷方还导致他的开销受到压制，他的薪水减半。In the same statement in which he unveiled the infrastructure plan, the British chancellor halved the tolls for crossing the Humber bridge.
在公开基础设施计划的同一个声明中，英国首相将通过亨伯桥的费用减半。"You're seeing senior VPs . . . eliminated at these companies, " replaced by junior people with less savvy but half the salary, he said.
“高级副总裁职务…在这些公司被裁掉，”代之的是精明不足但薪水减半的新手。But a magnesium atom would carry two electrons, so a battery storing a given amount of energy could be nearly halved in size and weight.
但镁原子每次可以携带两个电子，这样的话在储存相同能量时可以使电池的大小和重量减半。In work at his lab, mice given access to running wheels had about 50 percent less BMP-related brain activity within a week.
在他的实验室研究中，得以进入转轮不停奔跑的老鼠在一周内表现出BMP相关大脑活动量大约减半。But the square root does not transform an exponential time into a polynomial time; it just produces a smaller exponential.
不过开平方，并不能将指数时间转换成多项式时间，只是将指数幂次减半而已。