If you want to be a draftsman, a machinist, a molder, or a patternmaker, you'll need algebra and geometry and even trigonometry.
如果
想成为手
艺人、缝纫、造型或制模，需要代数和几何，甚至三角
。
器操作
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;匠;，修;程师;;If you want to be a draftsman, a machinist, a molder, or a patternmaker, you'll need algebra and geometry and even trigonometry.
如果想成为手艺人、缝纫、造型或制模，需要代数和几何，甚至三角。
The machinists only pay lip service to the safety regulations and one day soon there is going to be a nasty accident.
师们对安全条例只是口头上表示遵守,总有一天要出大事故的。
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