Injectivity
内射性
🗣️ 情景例句
He has a large family to feed.
他要养活一个大家庭。
If matters not how a man dies, but how he lives.
重要的并不在于一个人怎样死，而是在于他怎样生。
So what should you do? We'll assume that you have sorted out the basics --
那么你该怎么做呢？我们假定你已把基本情况弄清楚了，