From the looks on their faces, I surmised that they had had an argument.看他们的脸色，我猜想他们之间发生了争执。From his letter I surmised that he was unhappy.我从他的信中推测他并不快乐.We surmised that the delay was caused by some accident.我们推测迟延是由某种事故...
The silence lengthened as Thorne unnecessarily shuffled some papers.索恩整理着一些本无须整理的文件，沉默还在延续。They have pulled out patients' teeth unnecessarily.他们毫无必要地拔掉了病人的牙。I don't want to invade your private life unnecessaril...
推进器的叶片已经安装好了.The propeller blade has been mounted.然后地面控制人员将会发射推进器，把卫星送入正常轨道。Ground controllers will then fire the booster, sending the satellite into its proper orbit.较轻的推进器采用液态氢, 较重的采用自燃推进剂.The lighter version used liqu...