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单词 防腐剂和药品
例句 DEFINITIVE EXAMPLES 权威例句〔wood tar〕A viscous black fluid that is a byproduct of the destructive distillation of wood and is used in pitch, preservatives, and medicines.木焦油:一种黏的黑色液体,是对于树木毁坏性干馏的副产品,用于沥青、防腐剂和药品美国传统
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