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Electrons range over a large distance.
电子在一个大范围内活动。
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His studies range over several subjects.
他的研究涉及好几个科目。
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Animals range over the hills and plains.
动物在山丘和平原上出没。
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His studies range over several subjects.
他的研究涉及好几门科目。
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His thoughts range over past, present and future.
他想着过去,现在和将来,思绪联翩。