crow flight distance的用法和樣例：
例句
- The villages are no more than a mile apart as the crow flies.
這些村莊直線(xiàn)距離相隔不超過(guò)一英里。 - It's only 10 km to the nearest town as the crow files, but the winding mountain road menas you'll have to drive at least an hour to get there.
到最近的市鎮，直線(xiàn)距離只有十公里，可是因為山路崎嶇，至少要開(kāi)一個(gè)小時(shí)才到得了。
