respiratory例句
A cold is an infection of the upper
respiratory tract.
感冒是上呼吸道的感染。
These gases would seriously damage the patient's
respiratory system.
这些毒气会严重损害患者的呼吸系统。
If you smoke then the whole
respiratory system is constantly under attack.
如果抽烟，整个呼吸系统就会一直受到损害。