undo
英 [ʌn'duː]
美[ʌn'du]
	    - vt. 取消;解开;破坏;扰乱
 - vi. 撤消
 
英英释意
- 1. cancel, annul, or reverse an action or its effect;
 - "I wish I could undo my actions"
 
- 2. deprive of certain characteristics
 
- 3. cause the ruin or downfall of;
 - "A single mistake undid the President and he had to resign"
 
- 4. cause to become loose;
 - "undo the shoelace"
 - "untie the knot"
 - "loosen the necktie"
 
- 5. remove the outer cover or wrapping of;
 - "Let's unwrap the gifts!"
 - "undo the parcel"