yo-yos

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.

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

1.[obn]上下跳动的；左右摇摆的changing repeatedly in size, amount, quality, etc. from one extreme to another

1.【商】约约;〈美俚〉迟钝愚蠢的人

1.玩约约;忽上忽下

1.a toy consisting of a round plastic or wooden object on the end of a string that you can make rise and fall by tying the string to your finger and moving your hand up and down