吸烟对肺不好。

Xīyān duì fèi bù hǎo.

Smoking is bad for the lungs.

跑步锻炼可以增强肺活量。

Pǎobù duànliàn kěyǐ zēngqiáng fèi huóliàng.

Running exercise can increase lung capacity.

呼吸新鲜空气对肺部健康有好处。

Hūxī xīnxiān kōngqì duì fèibù jiànkāng yǒu hǎochù.

Breathing fresh air is beneficial for lung health.