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1.backtrack改动主张；重复无常to completely change what you think or say about something
因为他在那些疑问上重复无常，选民对他失掉了决心。Voters lost confidence in him when he backtracked on the issues. [=when he reversed his position on the issues]
2.backpedal重复无常
When threatened with a revolt of its own supporters, the government backpedaled [=retreated, backtracked] from its previous position.政府在其撑持者的抵挡挟制之下，扔掉了原先的情绪。
3.flip-flop重复无常；频频改动观念to suddenly or frequently change your opinion n.人字拖
a politician accused of 
flip-flopping on social issues被责备在严峻社会疑问上俄然改动观念的政客
flip-flopper重复无常的人
游客
