| 词汇 | ball the jack |
| 词源 | ball the jack. To move or work swiftly. Originally an Ameri- can railroad term (“That train is sure balling the jack.”) of the 19th century, ball the jack came to mean “to move or work swiftly,” as in “When he saw his boss coming he really balled the jack.” |
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英语词源词典收录了13259条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。