zon phan
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abacus; zon phan btang ba to use an abacus [RY]
abacus [RY]
(CH abacus [IW]
(CH) rtsis gzhong astr implement [IW]
abacus; zon phan btang ba to use an abacus [RY]
abacus [RY]
(CH abacus [IW]
(CH) rtsis gzhong astr implement [IW]