yo-yo

美 
英 ['jəʊjəʊ]
  • adj.上下跳动的;左右摇摆的
  • v.上下跳动;左右摇摆
  • n.悠悠球
  • 网络溜溜球;游游拉线盘;约约
复数:yo-yos  
yo-yo
n.
1.
悠悠球,溜溜球,摇摇(拉线使圆盘旋转着沿线上下来回移动)a toy that consists of two round pieces of plastic or wood joined together, with a piece of string wound between them. You put one end of the string around your finger and make the yo-yo go up and down.
He kept bouncing up and down like a yo-yo .
他像个悠悠球似的不停地上窜下跳。
v.
1.
[i]
(+ adv./prep.)
上下跳动;左右摇摆to change repeatedly in size, amount, quality, etc. from one extreme to another
When I was young my weight yo-yoed between 140 and 190 pounds.
我年轻时体重在 140 到 190 磅之间忽上忽下。
adj.
1.
[obn]
上下跳动的;左右摇摆的changing repeatedly in size, amount, quality, etc. from one extreme to another
She worries about her pattern of yo-yo dieting.
节食后体重反弹,再节食再反弹,她对这种模式很担心。

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