economic rhythm method 经济节律法
rhythm method of contraception 安全期避孕法
Music and Rhythm Teaching Method 音律教学法
rhythm control teaching method 节奏控制教学法
同义词： rhythm method of birth control rhythm calendar method of birth control calendar method
以上来源于: WordNet
N-SING The rhythm method is a practice in which a couple try to prevent pregnancy by having sex only at times when the woman is not likely to become pregnant. 安全期避孕法 [usu 'the' N]
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