oilfield

['ɔilfi:ld]

n. 油田

例句与用法：

The machine has been oiled.

机器已经上了油。

Have oiled the machine, he begin to run it.

他把机器上了油之后便开始开动。

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。

The door opens easily because the hinges were oiled.

这门开起来很容易，因为合页上了油。