| 单词 | alpha |
| 释义 | alpha n. 1. the first letter of the Greek alphabet (A). 2. a first-class mark given for a piece of work or in an examination. 3. Astron. the chief star in a constellation. Phrases and idioms alpha and omega the beginning and the end; the most important features. alpha particle (or ray) a helium nucleus emitted by a radioactive substance, orig. regarded as a ray. Etymology: ME f. L f. Gk |
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英语词典包含43808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。