Hillsden damped a hand towel and laid it across her forehead.希尔斯登沾湿了一条手巾，将它敷在她的额头上。Hillsden was complaining of cramp in his calf muscles...希尔斯登说他小腿抽筋。Something about the man was familiar, although Hillsden could not imme...
我们所有的飞机都有适航证书。All our aircraft have certificates of airworthiness.适航审定主要包括型号合格审定和生产许可审定及其他工作.Airworthiness certification includes Type Certification and Production Certification , and other related work.经审查合格的,发给出口适航证书.A...