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Eg. Pai4 ceung4 lung4 means line up on a long queue
It means somewhere that is not easily found.
Eg. Gam3 saan1 kaa1 laa1 ge3 dei6 fong1, ngo5 dou1 m4 zi1 dim2 heui3.
It's in the middle of nowhere, I don't even know how to get there.