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And ion, which is an atom or group of atoms with an electrical charge.
和离子，它是一个原子或原子的电荷组。
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Movement of each group was followed by an electrical equipment under the carpet.
每组人的行动都被置于地毯下的一个电子设备跟踪。
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Movement of each group was followed by an electrical equipment under the carpet.
每组人的行动都被置于地毯下的一个电子设备跟踪。
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