How to pronounce 呼吸道 in Cantonese (3 out of 4):

同埋保護呼吸道嘅功效
And it protects the respiratory system.

Cantonese Sentence Breakdown

同埋 tung4 maai4
and; together with
保護 bou2 wu6
protect
呼吸道 fu1 kap1 dou6
respiratory tract
koi3
indignant
generous
to sigh (with emotion)
功效 gung1 haau6
effectiveness