to change an opinion that you had expressed before or admit that a statement you made was wrongto change an opinion that you had expressed before or admit that a statement you made was wrong
改变（意见）;收回（说法） He has since walked back his opposition to the bill. 此后，他收回了对该法案的反对意见。
[ I or T ] to change an opinion, idea, etc.:[ I or T ] to change an opinion, idea, etc.:
At that time, Sony had shifted 30 million Playstation3 consoles since launch.
[ I or T ] to (cause to) change an opinion or the way in which you live or work:[ I or T ] to (cause to) change an opinion or the way in which you live or work:
He\'s made up his mind, and nothing you can say will move him on the issue.
[ I or T ] to (cause to) change an opinion or the way in which you live or work[ I or T ] to (cause to) change an opinion or the way in which you live or work
（使）改变观点（或做法） He\'s made up his mind, and nothing you can say will move him on the issue. 他决心已定，你说什么也不能改变他对这件事的看法。
