事实上，这本书是大胆的，绝不粗糙的，尽管保罗，米莉亚姆和克莱拉的关系描绘的很直白。
It is, in fact, fearless; never coarse, although the relations between Paul, Miriam, and Clara are portrayed with absolute frankness.
你绝不想让你的嘴唇看起来很粗糙吧。
绝不能使用苛性溶液或金属刷清除活塞表面的积碳和漆膜。因为这样会损坏活塞裙部的粗糙度。
Piston cleaning. Remove carbon and varnish from piston surfaces. Do not use a caustic cleaning solution or a wire Brush. These could damage the piston-skirt finish.
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