The Russians who cleaned the Embassy simply unscrewed the bolts(which were well oiled)on the security door lock and walked straight in.

负责打扫使馆的俄国人只需打开安全门上的紧锁螺栓（上过不少油），即可径直进入机房。

Working together like a well oiled team, the volunteers soon had Lin's home sparkling bright and clean. More importantly, the volunteers said their own hearts were purified in the process.

团队的合力，让林亚月换个干净清新的居所，更重要的是也擦亮了林亚月的心镜。

The system ran like a well-oiled machine.

这个系统运行得就像一台上了油的机器。

In general, our society is becoming one of giant enterprises directed by a bureaucratic management in which man becomes a small, well-oiled cog in the machinery.

总的来说，我们的社会正在变成一个官僚化管理的大型企业，在这个企业中，人们成为了机器上运转良好的小齿轮。

A glorious well-oiled angel rides on a winged unicorn.

一位光彩照人的天使骑着一只有翼的独角兽。