3 sentences

1. 提起吸烟，大多数人想起肺癌。

   tí qǐ xī yān, dà​duō​shù rén xiǎng qǐ fèi'ái.

   When it comes to smoking, most people think about lung cancer.

   Source: CCMatrix

2. 吸烟引起的最严重的疾病之一是肺癌。

   xī yān yǐn​qǐ de zuì yán​zhòng de jí​bìng zhī​yī shì fèi'ái.

   One of the most serious illnesses caused by smoking is lung cancer.

   Source: UM-Corpus: Education

3. 仅仅因为你爷爷一直吸烟到99岁并不意味着吸烟不会导致肺癌。

   jǐn​jǐn yīn​wèi nǐ yé​ye yī​zhí xī yān dào99 suì bìng​bù yì​wèi​zhe xī yān bù​huì dǎo​zhì fèi'ái.

   Just because your grandpa smoked until he was 99 doesn’t mean that smoking doesn’t cause lung cancer.

   Source: CCMatrix