Police will conduct random breath tests.

警察会随机进行吹气酒精测试。

If you feel your ability to draw a deep breath is declining, ask your doctor to perform lung function tests to give you a clear picture of your lung health.

如果你感觉做深呼吸的能力正在下降，要你的医生帮你做个肺功能测试，以给你自己肺部健康状况一个清楚的展示。