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The electrons meet less resistance when the conductor is cold than when it is hot.
电子在导体冷却时遇到的阻力比导体热时的小。
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The conductor kept coming to offer them hot water.
列车员不停地来为他们提供热水。
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The conductor kept coming to offer them hot water.
列车员不停地来为他们提供热水。
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