Question

circumference 【circumference】n.圆周；周围After dinner they walked around the circumference of the lake.晚饭后他们沿着湖的周围漫步。

Accepted Answer

[sər'kʌmfərəns] 
circumferencethe length of the closed curve of a circle
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.
It’s no coincidence that the first part of circumference looks like circle. The Latin word circum means “around,” and the root ferre is the Latin verb for “carry,” so imagine carrying a puppy around a circle pit of lava: the path you walk is the circumference.  If you want to buy a new hat, you’ll need to measure the circumference of your head, and patrolling the circumference of your castle is a good way to protect against dragons.
All forms of 'circumference' will appear on average once every 1279 pages.circumferentialcircumferencecircumferent

Front	circumference
Pron	[sər'kʌmfərəns]
Back	【circumference】 n.圆周；周围 After dinner they walked around the circumference of the lake. 晚饭后他们沿着湖的周围漫步。
Vocab	circumferencethe length of the closed curve of a circle 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. It’s no coincidence that the first part of circumference looks like circle. The Latin word circum means “around,” and the root ferre is the Latin verb for “carry,” so imagine carrying a puppy around a circle pit of lava: the path you walk is the circumference. If you want to buy a new hat, you’ll need to measure the circumference of your head, and patrolling the circumference of your castle is a good way to protect against dragons. All forms of 'circumference' will appear on average once every 1279 pages. circumferential circumference circumferent

Circumference Circle Latin Sər'kʌmfərəns N.圆周；周围 Dinner Walked Lake