The Earth orbits in an ellipse.地球轨道呈椭圆形。The man - made satellite orbits the earth every 48 hours.那颗人造卫星每48小时绕地球轨道运行一周.They knew each other by sight, but their orbits did not touch.他们见面认识, 但各自的生活圈子互不搭界....
A long palm tree - lined driveway leads to the park.一条两边栽满棕榈树的道路通向游乐园.Many of them are low coral or limestone hideaways of palm trees and white sand.那儿有许多人是低收入,珊瑚的石灰岩,棕榈树林隐蔽处,禽鸟来回飞翔,还有白沙滩.... the mile of white sand beach...