好，行隧道，唔該。
hou2 haang4 seoi6 dou6 m4 goi1
Okay, take the tunnel, please.
Okay, take the tunnelin Cantonese.
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Canto SchoolPronunciation
好行隧道
hou2 haang4 seoi6 dou6
Okay, take the tunnel
Recorded Cantonese
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When to use it
好 acknowledges the route choice, then 行隧道 tells the driver to take the tunnel; pause after 好.
Examples
好，行隧道，我趕時間。
hou2 haang4 seoi6 dou6 ngo5 gon2 si4 gaan3
Okay, take the tunnel; I am in a hurry.