| 词汇 | unfathomable |
| 释义 | un·fath·om·ableBrE /ʌnˈfæðəməbl/ NAmE /ʌnˈfæðəməbl/ adjective (formal ) too strange or difficult to be understood 难以理解的；莫测高深的◆ an unfathomable mystery 难以解释的奥秘if sb has an unfathomable expression , it is impossible to know what they are thinking （表情）难以琢磨的，微妙的 |
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