He seemed so sure of his decision, how could he flip-flop so dramatically now?
他似乎对自己的决定非常肯定，现在怎么会戏剧性地改变立场呢？
《柯林斯英汉双解大词典》
I stood there watching that fish flip-flop.
我站在那里看着那条鱼扑腾着。
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