Any of various devices on which calculation or counting is performed manually: esp. a frame with rows of wires or grooves along which beads are slid…
The Chinese abacus.
a frame containing beads strung upon wires used for teaching numeration, an abacus.
A kind of abacus used in Japan, adapted from the swan-pan.
= abacus, n. 1b.
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。