| 单词 | mastery |
| 释义 | mastery 1 ENTRIES FOUND: Learner's definition of MASTERY 1 : knowledge and skill that allows you to do, use, or understand something very well : command熟练；精通 — usually + of [noncount]
[singular]
2 [noncount] : complete control of something完全控制；驾驭
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英汉双解词典包含109353条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。