Almost all variations in living standards are explained by differences in countries'productivities.几乎全部的生活水平的不同都可以由生产率的不同来解释.Global warming affects productivities of plants, and then, the structure and evolution of ...
Our teacher rarely condescends to speak with us outside of class.我们老师很少在课堂外屈尊与我们轻松地谈话.He never condescends to any person.他从不谦恭对人.He never condescends to speak to me.他从来未曾屈尊与我谈话....
医生说詹姆斯的心脏有杂音。The doctor said James had now deve-loped a heart murmur.一盘有杂音的马里奥∙兰扎演唱录音带a scratchy recording of Mario Lanza这收音机杂音很多.There is much noise in this radio....
Many jets have an afterburner.许多喷气机都有加力燃烧室.Fig . 16 - 6 illustrates a typical afterburner fuel control system.图16-6示出了一种典型的加力燃烧室燃油控制系统.Afterburner system is runing very smoothly.后燃加力系统运行平缓....
As comets go, it is a whopper.就彗星而言,它可是个庞然大物。The earth crosses the tracks of certain comets.地球穿过某些彗星的轨迹线.Most stars probably have their quota of planets, meteorids, comets, and asteroids.多数恒星也许还拥有若干行星 、 流星 、 彗星和小行星....