an unknown quantity
an unknown quantity是什么意思、an unknown quantity怎么读
未知量, 难预测的事
an unknown quantity汉语翻译
未知量, 难预测的事
an unknown quantity例句
- The new teacher is still very much an unknown quantity but we have hopes that he will be a valuable member of our team.新教师是谁现在还难以预料，但我们希望他会成为我们队里的重要一员。
- The new sales director is still a bit of an unknown quantity.新来的销售部主任大家还不大了解。