999英语网 英语单词
Vitamin的音标发音
Vitamin
英式发音：['vtmn;'vat-] or ['vatmn]
美式发音
(noun.) any of a group of organic substances essential in small quantities to normal metabolism.
贺拉斯校对
(noun.) any of a group of organic substances essential in small quantities to normal metabolism.
贺拉斯校对