He kept bouncing up and down like a yo-yo .

他像个悠悠球似的蹦蹦跳跳。

《牛津高阶英汉双解词典》

My emotions went up and down scale a yo - yo.

当时我的情绪就好象悠悠轮一样忽上忽下.

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The price of petrol is going up and down like a Yo - Yo.

汽油的价格像悠悠一样忽上忽下.

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A yo - yo can rise and fall.

溜溜球既可以上升也可以下降.

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Li Dong is playing with a yo - yo.

李东正在玩溜溜球.

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Back in those days my equity used to swing up and down like a yo - yo.

过去,我的资金总是上上下下,像溜溜球一样.

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