The zoo also has performances featuring other animals trained to do tricks, including a monkey that slam dunks basketballs and dogs trained to use an abacus.

这家动物园也在训练其他动物表演，比如训练猴子灌篮，训练狗狗打算盘。

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Such fine calibrations may date back to the use of the abacus, and to an old Chinese convention that assumes a 360-day year for the purpose of reckoning interest payments.

如此精细的调整可追溯到算盘的使用，追溯到中国的一个古老传统，即假设一年为360天，以达到简化利息支付的目的。

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Such fine calibrations may date back to the use of the abacus, and to an old Chinese convention that assumes a 360-day year for the purpose of reckoning interest payments.

如此精细的调整可追溯到算盘的使用，追溯到中国的一个古老传统，即假设一年为360天，以达到简化利息支付的目的。

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