| 词汇 | impregnable |
| 释义 | im·preg·nableBrE /ɪmˈpreɡnəbl/ NAmE /ɪmˈpreɡnəbl/ adjective an impregnable building is so strongly built that it cannot be entered by force 坚不可摧的；牢不可破的◆ an impregnable fortress 坚不可摧的要塞strong and impossible to defeat or change 不可战胜的；难以改变的SYN invincible◆ The team built up an impregnable 5–1 lead . 这个队以 5:1 的绝对优势领先。 |
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