Tobacco contains more than 1200 kinds compounds that about most of them toxic to humans, especially nicotine, harmful particularly great.

烟草中大约含有一千二百多种化合物，其中大部分对人体有毒，特别是尼古丁，危害尤。

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Nicotine is highly addictive, and to quit smoking - especially without help - can be difficult.

尼古丁很容易上瘾，而戒烟——特别是在没有帮助的情况下戒烟——是很困难的。

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These children are especially vulnerable to "green tobacco sickness", which is caused by the nicotine that is absorbed through the skin from the handling of wet tobacco leaves.

这些儿童特别容易罹患烟草萎黄病，即处理湿烟叶时因皮肤吸收尼古丁所导致的疾病。

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Indeed, in America, the Tourette Syndrome Association felt it necessary to issue a statement warning of the paucity of long-term safety data, especially in children, and the potential interactions of nicotine with drugs given to treat the syndrome.

ECONOMIST: Great drug, shame about the delivery system | The

There is still, however, considerable interest in developing vaccines for nicotine addiction as well as other serious addictions especially cocaine.

FORBES: Nicotine Vaccine May Help You Quit Smoking