jumping jack

名词 n.
中文释义

英文释义

名词 n.
  1. A physical exercise performed by jumping to a position with the legs spread wide and the hands touching overhead and then returning to a position with the feet together and the arms at the sides.
  2. A machine, roughly the size of a three-year-old child, the foot of which vibrates forcefully, causing it to "jump" rapidly, pounding the ground to compact it.
  3. A toy figure of a person with jointed limbs that can be made to appear to dance or jump by pulling an attached string. dated

词形变化

jumping jacks plural jumping-jack alternative
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