1. Smoking is harmful to people's health.
2. Smoking is dangerous to our heart and lung.
3. Smoking and passive smoking are risk factors that lead to various diseases.
4. More than 90% of lung cancer is caused by smoking.
5. Smoking not only does harm to your health, but also wastes money.
声明：
本站内容均来自网络，如有侵权，请联系我们。
