圆周

1. 那一个点落在这圆的圆周线上。
   That point falls on the circumference of the circle.
2. 罗盘上三十二个方位之一用来指示方向的水手罗经刻度盘圆周上标记的三十二等分中之一
   Any of the32 equal divisions marked at the circumference of a mariner's compass card that indicate direction.
3. 地球的圆周长约为25000。
   The circumference of the earth is almost 25000 miles/The earth is almost 25000 miles in circumference.
4. 地球的圆周长约为两万五千英里。
   The circumference of the earth is almost 25,000 miles.

圆的英语翻译：

周的英语翻译：