Reckoning board
01
计算板, 算盘
a manual calculating tool with rows of beads or counters on rods or wires used for basic arithmetic operations
例子
In ancient civilizations, merchants and traders used reckoning boards, or abacuses, to perform calculations for trade and commerce.
在古代文明中，商人和贸易商使用计算板或算盘来进行贸易和商业的计算。
The teacher introduced students to the concept of counting and arithmetic using a reckoning board during a history lesson on ancient civilizations.
老师在关于古代文明的历史课上使用算盘向学生介绍了计数和算术的概念。
