on the fence

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释义
（在争论中）持观望的态度，抱骑墙的态度
undecided; wavering in one's opinion

例句
Jimmy: I was on the fence till you showed up, but thanks for helping me decide. (Better Call Saul)
吉米：你来之前我还在犹豫不决，不过现在真要感谢你帮我下定了决心。（风骚律师）