它的喷嘴抹了某种润滑油。Its nozzle was smeared with some kind of lubricant.天气冷时齿轮润滑油可能凝结而形成凹槽.Gear lubricants may congeal and channel in cold weather.这个月我们需要更多润滑油.We shall require more lubrication oil this month....
插头坏了,带电的电线露在外面。The plug broke, exposing live wires.检查一下别让插头松脱了。Check that the plug has not come loose .我必须更换吹风机的插头。I'll have to change the plug on my hairdryer....