Question about 210.6(A): Voltage between conductors in residency occupancies

210.6 (A) "In dwelling units and guest rooms...of hotels...and similar occupancies, the voltage shall not exceed 120 volts... between conductors that supply the terminals of...luminaires...cord-and-plug-connected loads..."

I get that they mean only 120 to lights, line to neutral. What I'm asking is if "between conductors" could be strictly interpreted to mean that only a single phase can enter a room, otherwise you'd have 208 between conditions.

So only circuits #1 and 2, but not 1 and 3.

I've built nursing homes and a hotel and I'm sure we didn't do this, but y'know, sitting here reading the code I had to wonder.