我用螺丝刀拧那些该死的螺丝钉时一点也使不上劲儿。I couldn't get any purchase with the screwdriver on the damn screws.这扇门的把手用两枚螺丝钉固定.The handle of this door is kept by two screws.在抽屉上用螺丝钉安装锁.A lock was screwed on the drawer....
目前, 有两种最普通的拓扑结构,分别称为环形网和总线形网.Today, the two most common topologies are called ring and bus networks.目的探讨胃线形溃疡的 X 线诊断、临床意义、检查方法.Objective To explore the clinical significance and X - ray diagnosis of linear ulcer.磁带: 线形的磁...