Around 1840 the floor length skirt returned , but this time stiffened around the circumference by horsehair.在叼840年前后,极地长裙再次流行, 只不过这次是采用马尾水支撑形状.It's a mile round the circumference of the field.运动场周长一英里.the circumfere...
the circumference of the earth地球的周长It's a mile round the circumference of the field.运动场周长一英里.The diameter and the circumference of a circle correlate.圆的直径与圆周有相互关系....