Often one ball is pitched high and the other is pitched low.
通常一对砂槌中，一个演奏的音调偏高，一个演奏的偏低。
Can you explain to me what the difference is between a high-pitched and low-pitched voice?
你能跟我解释一下高音和低音的区别吗？
Can you explain to me what the difference is between a high-pitched and low-pitched voice?
你能跟我解释一下高音和低音的区别吗？
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