unpick

v (a) [Tn, Tn.pr] ~ sth (from sth) take out (the stitches) 拆开（缝线）: unpick the stitches from a curtain 拆开窗帘的缝线. (b) [Tn] take out the stitches from (sth) 拆去（某物）的缝线: unpick a hem, seam, etc 拆去布边、 接缝处等的缝线.

unobjectionable, unobservable, unobserved, unobstructed, unobtainable, unobtrusive, unobtrusively, unoccupied, unofficial, unofficially, unoriginal, unorthodox, unorthodoxy, unpack, unpaid, unpalatable, unpalatably, unparalleled, unparliamentary, unpaved, unplaced, unplanned, unplayable, unpleasant, unpleasantly, unpleasantness, unplug, unpopular, unpopularity, unpractised, unprecedented, unprecedentedly, unpredictable, unprejudiced, unpremeditated, unprepossessing, unpretentious, unprincipled, unprintable, unproductive,