unlock

v.开锁

unknown, unlace, unladen, unlatch, unlawful, unlawfully, unlearn, unlearned, unleash, unleavened, unless, unlettered, unlicensed, unlike, unlikely, unlimited, unlined, unlisted, unliterary, unload, unlooked-for, unloose, unlovable, unloved, unluckily, unlucky, unmade, unman, unmanageable, unmanly, unmanned, unmannerly, unmarried, unmask, unmatched, unmentionable, unmentionables, unmerchantable, unmindful, unmistakable,