“cinchona bark”可以造什么句,cinchona bark造句
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2、A brownish - black mixture of alkaloids remaining after extraction of crystalline alkaloids from cinchona bark, used as a quinine substitute.
1、Colombian tree; source of Cartagena bark (a cinchona bark).
3、The first ever mention of using the cinchona bark was in official records of community of Jesuit missionaries.