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purpurin ['pəːpjurin] n
gen. 红紫〔紫红,紫色〕素; 尿紫素; 羟基茜草素
chem. 红紫素; 1.2.4-三羟基蔥醌; 1,2,4-三羟基蔥醌
purpurin: 1 phrase in 1 subject
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