undo

v.解开，松开；取消

undeserved, undeservedly, undeserving, undesignated, undesirable, undesirably, undetectable, undeterred, undeveloped, undid, undies, undignified, undirected, undischarged, undisclosed, undiscovered, undisputed, undistinguished, undisturbed, undivided, undoing, undone, undoubted, undoubtedly, undreamed-of, undress, undressed, undrinkable, undue, undulate, undulation, unduly, undying, unearned, unearth, unearthly, unease, uneasily, uneasiness, uneasy,