estimation可数吗

有可数，也有不可数。不过意思不同罢了。

estimation /'estɪm'eɪʃən/ (estimations)

1 [N-SING] usu with poss

Your estimation of a person or situation is the opinion or impression that you have formed about them. (FORMAL)

He has gone down considerably in my estimation.

2 [N-COUNT] oft N of n

An estimation is an approximate calculation of a quantity or value.

...estimations of pre-tax profits of £12.25 million.

= estimate

这是柯林斯大辞典上面的解释。