| 单词 | vitamin b complex |
| 释义 | vitamin B complex in British Englishnoun a large group of water-soluble vitamins occurring esp in liver and yeast: includes thiamine, riboflavin, nicotinic acid, pyridoxine, pantothenic acid, biotin, choline, folic acid, and cyanocobalamin Sometimes shortened to: B complexvitamin B complex in American Englishnoun an important group of water-soluble vitamins containing vitamin B1, vitamin B2, etc Word origin [1925–30]This word is first recorded in the period 1925–30. Other words that entered Englishat around the same time include: hot spot, off-line, recycle, reflex camera, turnaround |
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