双重和三重锯齿形 Double and Triple ZigZags
三重顶和三重底 triple tops and bottoms
双重和三重横向整理 Double and Triple Sideways
·2,447,543篇论文数据，部分数据来源于NoteExpress
五重，三重和两重螺旋对称轴。
And fivefold, threefold and twofold axes of rotational symmetry.
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他再三重复他所声称的：特立尼达和多巴哥的人民支持他的行动。
He repeated his claim that the people of Trinidad and Tobago backed his action.
《柯林斯英汉双解大词典》
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