中国已经承诺，到2020年将单位经济产出的二氧化碳排放削减40%至45%，但到目前为止一直要求发达国家资助其实现这一目标。
China has committed to cut its emissions per unit of GDP by 40-45 per cent by 2020 but had hitherto demanded financing from the developed world to help it achieve this.
规模经济指这样一种现象，即随着企业生产规模或数量的增加，每增加一单位产出带来的平均成本递减。
Refers to the phenomenon where the average costs per unit of output decrease with the increase in the scale or magnitude of the output being produced by a firm.
第二季度工人的劳动生产力以及单位时间产出量都有所上升，并超过了平均水平6个百分点，开始走出衰退的阴影。这对于经济下滑的大环境来说是正常的，但这意味着薪资还有更多的上升空间。
The productivity of workers, the amount produced per hour of work, shot up at an annual rate of more than 6 percent in the second quarter and has been climbing throughout the recession.
第二季度工人的劳动生产力以及单位时间产出量都有所上升，并超过了平均水平6个百分点，开始走出衰退的阴影。这对于经济下滑的大环境来说是正常的，但这意味着薪资还有更多的上升空间。
The productivity of workers, the amount produced per hour of work, shot up at an annual rate of more than 6 percent in the second quarter and has been climbing throughout the recession.
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