| 单词 | diameter |
| 释义 | Word Frequency diameter(daɪˈæmɪtə) noun 1. a. a straight line connecting the centre of a geometric figure, esp a circle or sphere, with two points on the perimeter or surface b. the length of such a line 2. the thickness of something, esp with circular cross section Word origin C14: from Medieval Latin diametrus, variant of Latin diametros, from Greek: diameter, diagonal, from dia- + metron measure |
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