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词汇 萃取
例句 Glucasmine is an amino sugar extracted from the chitin of shellfish.葡萄糖氨是一种从贝类壳质中萃取的氨基糖。After extraction and distillation, the substance is known as jasmine concrete.经过萃取和蒸馏的物质就是茉莉浸膏。
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