circumference
circumference 英 [səˈkʌmfərəns] 美 [sərˈkʌmfərəns]
n. 圆周；周长；胸围
名词复数:circumferences
- The distance around a circle is called the circumference, and although circumference is often used when talking about round things, it can mean a boundary of any shape that completely surrounds something.
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- n. 圆周；周长；胸围
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1. The tree has a circumference of 6 feet.
这棵树周长6英尺。
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2. The earth's circumference is about 25,000 miles.
地球的圆周约为25,000英里。
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3. So now all the mass is at the circumference, and now it takes more time.
所以所有的材料都是在圆周上，现在它会花更多的时间。
- circumference (n.) "line that bounds a circle" (loosely, "any boundary line"), 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," from PIE root *bher- (1) "to carry," also "to bear children." A loan-translation of Greek periphereia "periphery, the line round a circular body," literally "a carrying round" (see periphery). Related: Circumferential.
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