| 释义 |
circumference美 [sər'kʌmf(ə)rəns] 英 [sə(r)'kʌmf(ə)rəns] n. perimeter,boundary,bounds,edge,border 1. | 圆周；圆周长a line that goes around a circle or any other curved shape; the length of this line |
| the circumference of the earth 地球的周长 | | The earth is almost 25 000 miles in circumference . 地球的周长大约为 25 000 英里。 |
n. | 1. the distance around the edge of a circle 2. the distance around the edge of an object or a place that is roughly circular 3. the edge of a round object or area |
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