| 词组 | unknown quantity |
| 释义 | unknown quantityn.Someone or something whose value and importance are not known, especially in a certain situation, time or place; a new and untested person or thing. 未知数；难以预测的人（或事）；尚待证实的人（或事）◆ What we would find if we could fly to Mars is an unknown quantity.如果我们能飞到火星上去，我们会在那里发现什么尚不得而知。 |
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英语词组固定搭配大全包含9718条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。