adj.無法解決的；難以對付的

The problems are not insurmountable. 問題不是無法解決的。

The age barrier appeared insurmountable. 年齡障礙看來是無法逾越的。

No difficulty is insurmountable if one sets one's mind on it. 精誠所至，金石為開。

We know there are difficulties, but none of them are insurmountable. 我們知道有困難，但這些困難都不是不可以克服的。