coitus interruptus
noun /ˌkɔɪtəs ɪntəˈrʌptəs/, /ˌkəʊɪtəs ɪntəˈrʌptəs/
/ˌkəʊɪtəs ɪntəˈrʌptəs/
[uncountable]- an act of sexual intercourse in which the man removes his penis from the woman’s body before he ejaculates, in order to prevent the woman from becoming pregnant
(为防止受孕而在射精前抽出阴茎的)不完全性交 词源from coitus + Latin interruptus ‘interrupted’.