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It has a negative end and a positive end and it has certain properties.
这是一个偶极，有正电端也有负电端,偶极具有一定性质。
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$firstVoiceSent
- 来自原声例句
It has a negative end and a positive end and it has certain properties.
这是一个偶极，有正电端也有负电端,偶极具有一定性质。
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