| ประโยคภาษาจีน : 中文句子 | 
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|  xǔ duō许多  yán jiū xiǎo zǔ研究小组  jìn xíng进行  de的  yán jiū研究  bù róng zhì yí不容置疑  de地  biǎo míng表明  xī shí吸食  yān cǎo烟草  tè bié shì特别是  xī吸  juǎn yān卷烟  yǔ与  yù qī预期  shòu mìng寿命  suō duǎn缩短  yǒu guān有关 | 
| Research teams have conducted studies that show beyond all reasonable doubt that tobacco smoking, particularly cigarette smoking, is associated with shortened life expectancy. |