approximation
n. 粗略估计，近似值；类似事物，相似物；近似法
复数 approximations
例句
As we know, 365.25 is only an approximation.
如我们所知，365.25只是一个近似值。
《柯林斯英汉双解大词典》
That is a fair approximation of the way in which the next boss is being chosen.
那是一个挑选下任老板的大体近似方式。
Clearly that's an approximation, but my guess is there'll be a reasonable balance.
显然那是一个近似值，但是我的猜测是会有不少余额。
