Undo



GRE TOEFL 考研

解释

GRE 红宝书

• v. 解开, 打开;消除...的效果
• ［英］ v. 解开, 打开 ( unfasten) ; 消除...的效果 ( remove the effects of)
• ［例］ I can't undo my shoelaces.

Webster Collegiate

verb (undid; undone; undoing)

• Date: before 12th century
• 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>
    • c. seduce 3
• intransitive verb
  • to come open or apart
• ? undoer noun

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