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！
The cylindrical end mill with ball-nose is one kind of highly efficient cutting tool.
圆柱形球头立铣刀是一种高效刀具。
The cylindrical end mill with ball-nose is one kind of highly efficient cutting tool.
圆柱形球头立铣刀是一种高效刀具。
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