烟碱的

例句：

1. 1. He smokes a lot of cigarettes and has developed a serious addiction to nicotine.
   他吸烟很多，对尼古丁产生了严重的依赖。
2. 2. The tobacco industry is heavily regulated to prevent the harmful effects of nicotine on public health.
   烟草行业受到严格监管，以防止尼古丁对公共健康的危害。
3. 3. Nicotine withdrawal can cause intense cravings for nicotine, leading to relapse into smoking.
   尼古丁戒断可能导致强烈的尼古丁渴望，导致复吸。