unknown quantity

汉语翻译

【化】 未知量

英语解释

名词 unknown quantity:

a factor in a given situation whose bearing and importance is not apparenta variable whose values are solutions of an equation同义词：unknown

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。