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roller (guide) apron的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 roller:
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a grounder that rolls along the infield
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a long heavy sea wave as it advances towards the shore
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a small wheel without spokes (as on a roller skate)
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a cylinder that revolves
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a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it
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Old World bird that tumbles or rolls in flight; related to kingfishers
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pigeon that executes backward somersaults in flight or on the ground
