名词
中文翻译：烟酸
同义词：
['niacin', 'vitamin B3']
例句：
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1.He needs a good night's sleep to recover from his illness.
他需要好好睡一觉才能从他的病中恢复过来。
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2.The doctor prescribed him a special diet to help him recover.
医生给他开了一种特殊的饮食来帮助他康复。
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3. She took a multivitamin supplement to boost her energy levels.
她吃了一种多维他命补充剂来提高她的精力水平。