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....
When can you give back the money that you owe?你欠的钱什么时候还?Give back there. The express is due.往后退, 快车就要进站了.The student who will graduate should give back the academic gown first.若为毕业生请先归还学位礼服....