他们跟在他身后疾走。They trotted along behind him.我听到外面疾走的脚步声.I heard the scurry of feet outside.那明亮而疾走如飞的野火在田野里到处奔窜.Those light, swift fires, run about the country....
Major producers: large trucks gearbox bearings, Steyr non - standard bearings and bearing harvesters.主要生产: 大型货车变速箱轴承 、 斯太尔 非 标轴承以及收割机轴承.Well, so much for the producers. But what of the con-sumers?好吧，关于生产商就讲这么多，那关于消费者呢？St...
组蛋白是一类结合在染色体上的蛋白质.Histones are a group of proteins that are associated with chromosomes.组蛋白是涉及到调控基因的蛋白质.Histones are proteins involved in regulating genes turned on and off.组蛋白的特点是大量的翻译后修饰,这些修饰可以影响基因转录.Histones are chara...