他们保持给机器上油。
The key won't move, it need oiling.
钥匙转不动了，它需要上油了。
The lock is rather stubborn; it needs oiling.
这把锁相当难开，它需要加油了。
This will give your skin a general background oiling.
这会给你的皮肤一般背景上油。
And just what has been done by the oiling and smoothing?
但是在车轮上涂油和把路修平有什么作用呢？
It is a process oiling the machinery essential equipment.
它是注油工艺机械不可缺少的注油设备。
The last thing I remember, I was in the lab oiling my teeth.
我记得的最后事情，我在实验室给我的牙齿加油。
You must make sure that the supplier clean the parts before oiling.
你必须确认供应商清洗干净零件后在上防锈油的。
It's cutting your finger, it's oiling your bike, it's picking your nose!
是割破了你的手指，是给你的自行车上油，是挖你的鼻子！
Thus, constant cleaning and oiling must be done to maintain its efficiency.
因此，不断的清洁和上油必须做的，以维持其工作效率。
Thus, constant cleaning and oiling must be done to maintain its efficiency.
因此，不断的清洁和上油必须做的，以维持其工作效率。
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