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1·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。《牛津词典》

2·He oiled his bike and pumped up the tyres.

他给自己的自行车上了油，给轮胎充了气。《牛津词典》

3·Oiled wood is water-resistant and won't flake.

上过油的木头防水而且不会剥落。《柯林斯英汉双解大词典》

4·A crew of assistants oiled and adjusted the release mechanism until it worked perfectly.

助手们给排放装置加了润滑油并做了调节，直到其运转良好。《柯林斯英汉双解大词典》

5·I fixed a slab of board for the desk and made the back of the seat softer, then I oiled the screws so it is easier to fold.

我在桌子上固定了一块木板，并把椅背做得软了一些，之后给螺丝上了润滑油，这样就更容易折叠了。

6·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。

7·When they get a tern or pelican to drop a fish, they plunge down and grab it off the surface of the water, which may have been how this bird got oiled.

当他们让一只燕鸥或鹈鹕扔下一条鱼时，他们会一头栽到水里，然后把鱼从水面抓起来，这可能就是这只鸟被油弄脏的原因。

8·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。

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

总的来说，我们的社会变成了一个官僚化管理的大型企业，其中的所有人都成了这台机器中润滑良好的小齿轮。

10·Machinery is oiled to keep it running smoothly.

机器要上油，以保持其转动顺滑。

(1)oil and gas油和天然气；油和煤气

(1)oil field油田

(1)crude oil[化]原油

(1)heavy oil重油（将焦油蒸馏得到的比重大于水）

(1)oil production石油生产；石油开采

(1)oil price油价；原油价格