复数：surds
1.【数】不尽根的,无理数的;【语】无声的,清音的
1.【语】无声音,清音;【数】不尽根,无理数
1.in mathematics, an irrational root or irrational number, or an expression containing one or the other
2.a consonant pronounced without vibration of the vocal cords
surdssurdssurds