基本解释[医药科学]大便频数英汉例句双语例句Results Bowel movement frequency was once per 4 to 14 days in all of the patients, who had had long term laxative abuse.结果本组患者大便次数每4～14天1次，所有患者均有长期服用泻剂史。专业释义医药科学大便频数