安全期避孕法；
911查询·英语单词
1. 安全期避孕法：Rhodopsin 视紫(红质) | Rhythm method 安全期避孕法 | Rib 肋骨
2. \u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D
2. 节律法：rhythm judgment 节奏判断 | rhythm method 节律法 | rhythm of architecture 建筑的韵律
3. rhythm method
3. 安全期避孕,安全期避孕法：rhythm ==> 周期性变动 | rhythm method ==> 安全期避孕,安全期避孕法 | rhythm selection buttons ==> 节奏选择钮
911查询·英语单词
noun
1. 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)
Synonym: rhythm method of birth controlrhythmcalendar method of birth controlcalendar method