circumference

1. N-UNCOUNT The circumference of a circle, place, or round object is the distance around its edge. 周長

...a scientist calculating the Earth's circumference. …一位正在計算地球周長的科學家。

2. N-UNCOUNT The circumference of a circle, place, or round object is its edge. 周邊

Cut the salmon into long strips and wrap it round the circumference of the bread. 把鮭魚切成長條，然後把它裹在麪包的四周。