| 词汇 | jumping jack |
| 释义 | jumping jack 1 ENTRIES FOUND: jumping jack (noun) jumping jack noun plural jumping jacks jumping jack noun plural jumping jacks Learner's definition of JUMPING JACK [count] US : an exercise in which a standing person jumps to a position with the legs and arms spread out and then jumps back to the original position跳跃运动（原地分腿跳起、两臂展开后还原的动作） We did a few jumping jacks to warm up.我们做了些跳跃运动来热身。 |
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