我用拇指指甲把台灯上的螺钉拧紧了。I used my thumbnail to tighten the screw on my lamp.我尤其喜欢那种用螺钉固定在墙上的搁板。I particularly like the type of shelving that screws to the wall.每个托架只用了3颗螺钉固定在墙上。Each bracket is fixed to the wall with just three ...
机械工发现飞机的导航系统存在问题。Mechanics discovered problems with the plane's navigation system.机械工给汽车轴上了润滑油.The mechanic greased the car's axle.机械工将发动机中的油全部放走.The mechanic drained all the oil from the engine....
The first British attempt to colonize Ireland was in the twelfth century.英国最早尝试在爱尔兰开拓殖民地是在12世纪。She is entitled to a twelfth of the cash.她有权获得这笔钱的1/12。December is the twelfth month of the year.12月是一年中的第12个月....