| 释义 | rhythm method noun[ S ]
 uk /ˈrɪð.əm ˌmeθ.əd/ us /ˈrɪð.əm ˌmeθ.əd/
 a way of preventing pregnancy, in which partners have sex on those days when the woman is unlikely to become pregnant安全期避孕法
 SMART Vocabulary: related words and phrases
 Obstetrics: contraception
 cap
 cervical cap
 condom
 contraception
 contraceptive
 Dutch cap
 emergency contraception
 family planning
 Femidom
 French letter
 IUD
 johnny
 minipill
 morning-after pill
 prophylactic
 rubber
 safe sex
 sheath
 unsterilized
 vasectomy
 
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