「calendar method of birth control」の発音の仕方 (英語)
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「calendar method of birth control」の独自の発音を追加します
「calendar method of birth control」の意味と定義
- Noun
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)
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