translation.en: Let's take baseball and pizza and compare it when talking about three aspects of sexual activity: the trigger for sexual activity, what happens during sexual activity, and the expected outcome of sexual activity.
translation.zh: 让我们把棒球和比萨饼放在一起 比较一下下面关于性行为的三个方面 性行为的开端 性行为过程中发生了什么 以及性行为的预期结果