Abacuses are so fast and accurate that people still use them today.算盘如此快和准确以致于现在人们仍在使用它....

n.算盘( abacus的名词复数 )，（圆柱）顶板...

abacuses的音标：abacuses的英式发音音标为：['æbəkəsɪz]abacuses的美式发音音标为：[]...