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rhythm methods 汉语翻译【医】 安全期避孕法 英语解释：名词 rhythm method:- natural family planning in which ovulation is assumed to occur 14 days before the onset of a period (the fertile period would be assumed to extend from day 10 through day 18 of her cycle)
同义词：rhythm method of birth control, rhythm method, rhythm, calendar method of birth control, calendar method
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