as the crow flies
直线距离
as the crow flies字面上的意思是「照乌鸦的飞法」。乌 鸦是飞直线的，所以，as the crow flies常用来表示「直线距 离」。
As the crow—or in this case the seagull—flies, it is a mere eleven miles across San Francisco Bay from Candlestick Park，home of the National League pennant-winning Giants，to the Oakland-Alameda County Coliseum，where the American League champion Athletics play.(出自：time，Oct. 23，1989，p. 79)
在此或许该说海鸥照乌鸦的飞法，从国家联盟冠军巨人队球场烛台公园，越过旧金山湾到美国联盟冠军运动队球场奥克 兰阿拉米达郡竞技场，只不过十—英里的距离。