Pinyin/Gland
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A gland is an organ in an animal's body that synthesizes a substance such as hormones for release into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland).
Xiàntǐ shì dòngwù tǐnèi de 1-zhǒng qìguān, yòngyǐ héchéng wùzhì rú jīsù shìfàng dào xuèliúxìtǒng (nèifēnmìxiàn) huò jìnrù shēntǐ nèibù kōngqiāng huò wàibù biǎomiàn (wàifēnmìxiàn).