变化莫测 / 變化莫測

biàn​huà​mò​cè

unpredictable

changing in an erratic way that is impossible to foresee or measure

这里的气候变化莫测，刚才还是晴空万里，现在就下起大雨了。

idiom

created sense Mar 4, 2026, 02:25 AM