oiled

动词 oil:

1. cover with oil, as if by rubbing
   同义词：oil
2. administer an oil or ointment to ; often in a religious ceremony of blessing
   同义词：anoint, inunct, oil, anele, embrocate

形容词 oiled:

1. treated with oil

1. The machine has been oiled.
   机器已经上了油。
2. Have oiled the machine, he begin to run it.
   他把机器上了油之后便开始开动。
3. In order to reduce friction, the moving parts of a machine are often oiled.
   为了减少摩擦，机器的可动部件常常涂上润滑油。
4. The door opens easily because the hinges were oiled.
   这门开起来很容易，因为合页上了油。