diaphragm
noun [ C ] uk/ˈdaɪ.ə.fræm/ us/ˈdaɪ.ə.fræm/
(MUSCLE)
膈，膈膜
the muscle that separates the chest from the lower part of the body
(BIRTH CONTROL)
避孕隔膜，子宫帽
a circular rubber device that a woman puts inside her vagina before having sex, to avoid becoming pregnant
(COVER)
engineering specialized隔膜;膜片
any thin piece of material stretched across an opening