For example,when I am driving, I always travel as the crow flies.

VOA: special.2010.06.13

It may not be as the crow flies and may be long way around,

它可能不是直线最短距离，可能绕得很远，

小心微型出租车 - SpeakingMax英语口语达人

not necessarily quickest route as the crow flies.

不必是最快的直线距离。

伦敦的出租车司机 - SpeakingMax英语口语达人