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abacus

Related topics: Maths
ab·a·cus /ˈæbəkəs/ noun [countableC]  
abacus.jpg HMa frame with small balls that can be slid along on thick wires, used for counting and calculating 算盘
Examples from the Corpus
Origin abacus
(1300-1400) Latin Greek abax flat piece of stone
ab·a·cus noun
Chinese
Syllable
Corpus

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