一輪明月 One Round Bright Moon
逐句解 Line by line
On four sides the night mist hangs dim; over the three markets the cold smoke drifts thick.
宿霧 is the mist that settles and stays the night. 三市 is the standard shorthand for a city's marketplaces, and it will come back in the next passage paired with the six streets.
Two by two, husbands and wives go back behind embroidered curtains; and one round bright moon comes up in the east.
The count lands on two and then one, and the poem closes. 兩兩 is in pairs, two by two — and it is doing double duty, since it is both the number in the sequence and a real description of the couples going in. Then 一輪, one wheel, the measure word for the moon, and everything human is indoors.
The last two numbers are the only ones that describe people rather than places, and they arrive just as the people leave the street. Couples going in, moon coming up. The city empties on cue.
Then the trap closes on the joke. The poem has spent ten lines emptying the streets so that Pilgrim can work unseen, and the very next thing he will find is an inn full of men who have not gone to sleep, an innkeeper who tells them to watch their bags, and a wife who sits up darning. Nobody in this chapter sleeps when Pilgrim needs them to.