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adj.無管的...

Endocrinology is defined as the study of the ductless or endocrine glands and their internal secretions.內(nèi)分泌學(xué)的定義是:研究無管腺或稱內(nèi)分泌腺及它們的內(nèi)分泌的科學(xué)....

ductless的音標(biāo)：ductless的英式發(fā)音音標(biāo)為：['d?ktl?s]ductless的美式發(fā)音音標(biāo)為：['d?ktl?s]...