1.   I look up and smile at her, to undo the effect of my sigh.

2.   If you use the PRINT version of the commands, the terminating CR will undo its effect.

3.   Analysts doubt the measure will undo the effects of the earlier tax increase.

4.   A change in American accounting rules obliged Sony to greatly accelerate write-offs of movie promotion costs, undoing the effects of a crop of hit films in the year.

5.   But the Constitution is color conscious to prevent discrimination being perpetuated and to undo the effects of past discrimination.

6.   But the rescue cannot undo the effect of events leading up to it.

7.   He said repatriation in previous years to undo the effects of ethnic cleansing has been slow and expensive because of the many stages of refugee assistance.