維生素各種脂溶性或水溶性生命物質(zhì)之一，少量的這種物質(zhì)對生命體的生長(cháng)和活動(dòng)至關(guān)重要，通常從植物食物中取得
Any of various fat-soluble or water-soluble organic substances essential in minute amounts for normal growth and activity of the body and obtained naturally from plant and animal foods.
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