circumference

circumference
[səˈkʌmf(ə)r(ə)ns]
noun
  1. the enclosing boundary of a curved geometric figure, especially a circle
    周线(尤指圆周线)
    ■the distance around something
    周围
    babies who have small head circumferences.
    头围很小的婴儿们。
    [mass noun]two inches in circumference.
    周长二英寸。
    ■the edge or region which entirely surrounds something
    周边;周边地带
    petals on the circumference are larger than those in the centre.
    位于周边的花瓣要比中间的大些。
派生
circumferential
adjective
circumferentially
adverb
语源
  1. late Middle English: from Old French circonference, from Latin circumferentia, from circum 'around, about' + ferre 'carry, bear'
英语宝典
考试词汇表