a way of helping people stop smoking, by providing nicotine (= a poisonous chemical found in tobacco) in other forms

Using nicotine replacement therapy (NRT) - gums, patches, or nasal sprays - increases your chance of success. 使用尼古丁替代疗法——以口香糖，贴片，或鼻喷雾剂的形式——增加你的成功机会。

Three percent of those who want to give up succeed using willpower alone, while the success rate for nicotine replacement therapies is 16 percent. 3% 想戒烟的人只用意志力就可以成功，而尼古丁替代疗法的成功率是16% 。