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Jumping jack
01
开合跳, 星形跳
an exercise that is performed by jumping from a standing position with legs both spread wide and the hands touching overhead and then returning to a position with the feet together and the arms at the sides
Example
The warm-up routine began with a set of jumping jacks to get everyone's heart rates up.
She did a series of jumping jacks before starting her workout to loosen up her muscles.
The fitness instructor demonstrated how to perform jumping jacks correctly for maximum benefit.
02
跳跃木偶, 关节玩具
a traditional articulated toy made from paper or wood, featuring a jointed design that allows the arms and legs to move when pulled by strings or levers, creating a jumping or dancing motion when manipulated
What is a "jumping jack"?
A jumping jack is a type of toy that consists of a figure with moveable limbs, often made from wood or plastic, attached to strings. When the strings are pulled, the figure's arms and legs move in a jumping motion. The toy is often designed to look like a person or animal, with the action of the limbs creating a playful, lively effect. Jumping jacks have been popular for many years, especially as a traditional toy for children. They are enjoyed for their simple mechanics and ability to entertain with their repetitive, bouncy movement.