the missionary position
noun/ðə ˈmɪʃənri pəzɪʃn/
/ðə ˈmɪʃəneri pəzɪʃn/
[singular]- a position for having sex in which a man and a woman face each other, with the man lying on top of the woman
正常体位，传教士体位（男上女下的性交姿势） Word Originsaid to be so named because early missionaries advocated the position as “proper” to primitive peoples, to whom the practice was unknown.