| 词汇 | play ball |
| 词源 | play ball. Play ball has come to mean to cooperate or col- laborate, and also to begin. The words are from baseball, where Play ball! has been the plate umpire’s command to be- gin play since at least 1901, when the term first appears in print. |
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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。