Zone 2 is very comfortable and quite useful for building aerobic fitness, fat-burningcapacity, and endurance.
区域2,非常舒服,适用于提高有氧能力,脂肪燃烧能力和耐力。
2
Such designs, as shown above, could carry hundreds of airline passengers in the large center section while burning much less fuel than today’s airliners of similar capacity.
如上所示的设计,在大型机舱满载数百名乘客的耗油量比现在同等载客量的客机要低得多。
3
Every year China is building power-generating capacity almost equivalent to Britain's entire stock, almost all of it burning coal—the dirtiest fuel.