n.性交前的爱抚；前奏；前戏
You understand that this is the foreplay, this is the creativity. 大家就会眨眨眼，笑一笑，你知道这是前戏，是创意。
Unless there are serious time constraints, foreplay should never be skipped. 除非有严格的时间限制，前戏绝对不能跳过。
