v.撤销
Merriam-Webster Online Dictionary
undo (verb)transitive verb
1.
to open or loose by releasing a fastening
2.
to make of no effect or as if not done make null - reverse
3.
a) to ruin the worldly means, reputation, or hopes of - a politician undone by scandal
b) to disturb the composure of - upset she's come undone
intransitive verb
c) - seduce to come open or apart
Merriam-Webster Online Thesaurus
undo (verb)1.
to deprive of courage or confidence
SYNONYMS:
demoralize, emasculate, paralyze, undo, unman, unstringRELATED WORDS:
debilitate, enervate, enfeeble, neuter, weaken; prostrate, sap, soften, tire, waste; frighten, intimidate, psych (out), scare, terrify, terrorize; daunt, discourage, dishearten, dismay, dispirit; craze, derange, madden, unbalance, unhinge; discompose, disquiet, disturb, faze, perturb, unsettle, upset, weird outNEAR ANTONYMS:
fortify, strengthen; embolden, encourage, hearten2.
to disengage the knotted parts of
SYNONYMS:
unbind, undo, unfasten, unlashRELATED WORDS:
unbraid, unlace; disentangle, ravel, unravel, unsnarl, untangle, unwind; loose, loosenNEAR ANTONYMS:
braid, interlace, interweave, lace, wind; entangle, snarl, tangle3.
to trouble the mind of; to make uneasy
SYNONYMS:
agitate, ail, alarm ( alarum), bother, concern, derail, discomfort, discompose, dismay, disquiet, distemper, distract, distress, exercise, flurry, frazzle, freak (out), fuss, hagride, perturb, undo, unhinge, unsettle, upset, weird out, worryRELATED WORDS:
aggravate, anger, annoy, bug, chafe, chivy ( chivvy), exasperate, fret, gall, get, grate, harass, harry, irk, irritate, nettle, peeve, pester, pique, put off, put out, rile, vex; bedevil, haunt, plague; abash, confound, confuse, discomfit, disconcert, discountenance, embarrass, faze, fluster, jar, mortify, nonplus, rattle, shake up; daunt, demoralize, discourage, dishearten, dispirit, unnerveNEAR ANTONYMS:
allay, alleviate, assuage; appease, conciliate, mollify, pacify, placate, propitiate