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nicotine

美音:[´nıkə´ti:n ]点这儿播放单词美音发声
英音:[´nıkə´ti:n ]点这儿播放单词英音发声
n.烟碱

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nicotine为高中词汇

nicotine


/'nɪkəti:n; `nɪkə,tin/
n [U] poisonous oily substance found in tobacco 尼古丁
*nicotine-stained fingers 被尼古丁熏黄的手指
* [attrib 作定语] cigarettes with a low nicotine content 尼古丁含量低的香烟.

nicotine


n[U]
[Date: 1800-1900; Origin: Jean Nicot (1530-1604), French diplomat who first brought tobacco into France]
a substance in tobacco which makes it difficult for people to stop smoking