| 单词 | jumping jack |
| 释义 | jumping jack 1. a toy consisting of a jointed figure that is made to jump, move, or dance by pulling a string or stick attached to it. 2. a conditioning exercise performed by starting from a standing position with legs together and arms resting at the sides and then jumping to a position with the legs spread apart and out to the sides while simultaneously extending the arms out from the sides to an overhead position with the hands touching and finishing by reversing these movements to return to the starting position. [1860-65, Amer.] |
| 随便看 |
英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。