他们时常陷入枯燥的日常事务之中。All too often they become enmeshed in deadening routines.他时常伪装自己。From time to time he will take on a new persona.我拒绝接受帮助的时候时常显得粗鲁无礼。I was often rude and ungracious in refusing help....
内窥镜观察对这些大动物是一种有效的检查方法.Endoscopy is a useful method of examination in this species.全息内窥镜系一根直径十毫米、长八十六毫米的不锈钢管.The holoendoscope is a stainless steel tube, 10 millimetres wide and 86 millimetres long.那么你很清楚格蕾内窥镜手术法了?So you&...