move the beads of an abacus up and down
suàn pán zi er ㄙㄨㄢˋ ㄆㄢˊ ㄗㄧ ㄦ算盘子儿 ◎ 算盘子儿 sunpnzǐr[beads on an abacus] 算盘上的珠子,扁圆形,中间有
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