gǔ / rén / yòng / zhú / chóu / zài / suàn / pán / shàng / zǐ / xì / chóu / suàn / měi / bǐ / zhàng / mù

古人用竹筹在算盘上仔细筹算每笔账目。

Ancient people used bamboo tokens on an abacus to carefully calculate each account.