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Chinese dictionary
v.refine; make with extra care; make with meticulous care; purify
在生橡胶里加硫磺精制,就成了普通的橡胶。
Adding sulphur to raw rubber and refining it produces ordinary rubber.
在生橡胶里加硫磺精制,就成了普通的橡胶。
Adding sulphur to raw rubber and refining it produces ordinary rubber.