circumference

英 [səˈkʌm.fər.əns]      美 [sɚˈkʌm.fɚ.əns]
  • n. 圆周;周长;胸围
星级词汇:
circumference
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将“circumference”分解为“circum”和“ference”。记住“circum”意味着围绕或环绕,而“ference”可以联想到“φέρω”(希腊语,“我带来”),因此“circumference”可以想象为“带来环绕”的距离,即圆的周长。

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circumference 周长

circum-,圈,周围,-fer,带,携,词源同bring,conference.

circumference (n.)
late 14c., from Latin circumferentia, neuter plural of circumferens, present participle of circumferre "to lead around, take around, carry around," from circum "around" (see circum-) + ferre "to carry" (see infer). A loan-translation of Greek periphereia "periphery, the line round a circular body," literally "a carrying round" (see periphery). Related: Circumferential.
1. the circumference of the earth
地球的周长
2. It's a mile round the circumference of the field.
运动场周长一英里.
3. The diameter and the circumference of a circle correlate.
圆的直径与圆周有相互关系.
4. The lake is thirty li in circumference.
这湖周围长30里.
5. The lake has a circumference of 800 li.
那个湖方圆800里.

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