Definition (活動)
to engage in sexual activity with someone
與(某人)做愛
They were attracted to each other at the party and decided to knock off.
他們在派對上互相吸引,並決定發生關係。
She invited him to dinner and hinted that they could knock off later.
她邀請他共進晚餐,並暗示他們之後可以發生關係。
This couple often knocks off together on the weekends.
這對情侶經常在週末一起發生關係。