唱空城計

lit. to sing “The Empty City Stratagem” (idiom) / fig. to put up a bluff to conceal one's weakness / (jocular) (of a place etc) to be empty / (of one's stomach) to be rumbling

to sing / to call loudly / to chant

city walls / city / town / CL:座[zuo4],道[dao4],個|个[ge4]

empty / air / sky / in vain

to empty / vacant / unoccupied / space / leisure / free time

the empty city stratagem (in which Zhuge Liang presents himself as unperturbed while making it evident that his city is undefended, hoping his adversary will suspect an ambush) / double bluff

surname Ji

to calculate / to compute / to count / to regard as important / to plan / ruse / meter / gauge