Unnaturally high nicotine concentrations deterred the bees.

浓度高于自然水平会使大黄蜂望而却步。

His addiction to nicotine trumped convention and courtesy.

他的烟瘾胜过了公德和。

Tobacco contains nicotine, which is addictive.

烟草含有，它可致人成瘾。

Nicotine affects the hippocampus as well.

也会损害海马体。

In particular, nicotine is a highly flexible molecule.

是一种尤其高活性的分子。

Look, there are other ways to quit. You can try the nicotine patch, or nicotine chewing gum.

看，还有其他方法能戒烟的。你可以试试贴片或口香糖。

Health experts say nicotine is highly harmful to developing brains.

健康专家表示，对发育中的大脑极具危害。

Headaches and seizures are also common signs of nicotine poisoning.

头痛和癫痫也是中毒的常见病症。

E-cigarettes create a vapor out of nicotine and other chemicals.

电子烟由和其他化学品制造出烟雾。

Professor Terrence said nicotine is connected to high protease levels in the lungs.

特伦斯教授说，与肺部的高蛋白酶水平有关。

The symptoms they report are consistent with acute nicotine poisoning.

根据他们所描述的症状，这与急性中毒相吻合。

Nicotine narrows your blood vessels and puts added strain on your heart.

可缩小血管宽度，增加心脏负荷。

These substances contain chemicals similar to nicotine and affect insect nervous systems.

这些农药中含有类似的物质，这种物质会影响蜜蜂的神经系统。

How's the final stage of your nicotine addiction study going? Fine.

" 成瘾" 研究的最后阶段进行得怎么样了？还行。

Don't forget, nicotine is one of the most addictive substances out there.

不要忘记，是最具成瘾性的成分。

The bacteria uses nicotine as its sole source of carbon and nitrogen.

这种细菌会将视为唯一的碳及氮的来源。

Quitting can lead to anxiety and depression, resulting from nicotine withdrawal.

戒烟可导致焦虑和抑郁，由于戒断造成的。

At the beginning of the study, the participants answered questions about alcohol and nicotine dependence.

在研究开始阶段，参加受试的人需要对酒精和依赖性进行问卷调查。

Instead, they release a nicotine vapour that makes people feel like they are smoking.

相反, 电子烟释放蒸汽，让人们觉得自己在吸烟。

Cigarette companies intentionally designed cigarettes with enough nicotine to create and sustain addiction.

香烟公司故意添加的分量很足的来制造和维持烟瘾。