虚汗

虚汗	xū hàn	(TCM) sweating due to physical weakness
虚	xū	emptiness / void / abstract theory or guiding principles / empty or unoccupied / diffident or timid / false / humble or modest / (of health) weak / virtual / in vain
汗	hán	see 可汗, 汗国
汗	hàn	perspiration / sweat / CL:滴,头,身 / to be speechless (out of helplessness, embarrassment etc) (Internet slang used as an interjection)