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单词 mammary glands
释义
mammary glands

Biology
  • The milk-producing organs (possibly modified sweat glands) of female mammals, which provide food for the young (see milk; colostrum). Their number (2 to 20) and position (on the chest or abdomen) vary according to the species. In most mammals the gland openings project as a nipple or teat. Nipples have a number of milk-duct openings; teats have one duct leading from a storage cavity.


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