柯林斯词典nicotine /ˈnɪkəˌtiːn/ 1. N-UNCOUNT Nicotine is the substance in tobacco that people can become addicted to. 尼古丁 Nicotine produces a feeling of well-being in the smoker. 尼古丁能讓吸菸者産生一種愉悅的感覺。 返回 nicotine剑桥词典a poisonous chemical , found in tobacco , that is addictive 尼古丁，菸堿 返回 nicotine