海洛因

例句：

1. 1.He was sentenced to prison for selling heroin.
   他因贩卖海洛因而被判入狱。
2. 2.Heroin addiction is a serious public health issue.
   海洛因成瘾是一个严重的公共卫生问题。
3. 3.The dealer offered me some morphine as a way to ease my pain.
   那个贩子给了我一些吗啡，作为减轻我疼痛的一种方式。