他们脚下的石板路经过数百年的踩踏，磨得光溜溜的。The flagstones beneath their feet were worn smooth by centuries of use.他关上门,踏上了1/4英里长的下山路.He closed his door and started the quarter-mile walk down the hill.我挤出人群，踏上了自动扶梯。I pushed through the crow...
Barry held the bowls while Liz ladled soup into them.巴里负责端着碗，由利兹向碗里盛汤。He ladled out the soup.他用大勺分汤.He ladled a bowl of stew for himself.他给自己盛了一碗炖肉....
那些人进屋时,布伦希尔德紧张地站了起来.Brunhilde stood up nervously as the men came into the room.布伦达握紧椅子扶手时指关节都变白了。Brenda's knuckles were white as she gripped the arms of the chair.布伦达一副询问的表情看着丹尼尔。Brenda looked questioningly at Danie...
Intracellular PHB depolymerase and 3 hydroxybutyrate dehydrogenase catalyze the initial reactions of intracellular PHB catabolism.进一步比较研究了不同菌株的PHB解聚酶和3羟基丁酸脱氢酶的活性.PHB depolymerase is a kind of extracellular enzyme which i...