细作

细作	xì zuò	(old) spy; secret agent
细	xì	thin or slender / finely particulate / thin and soft / fine / delicate / trifling / (of a sound) quiet / frugal
作	zuō	(bound form) worker / (bound form) workshop / (slang) troublesome; high-maintenance (person)
作	zuò	to do; to engage in / to write; to compose / to pretend; to feign / to regard as; to consider to be / to be; to act the part of / to feel (itchy, nauseous etc) / writings; works