动物们在结伴同行时，总是采取一种适当而合理的走法，就是排成竖行，而不是横跨整个路面。因为如果那样走，在突遇麻烦或危险时，就不便互相支援协助。

Animals when in company walk in a proper and sensible manner, in single file, instead of sprawling all across the road and being of no use or support to each other in case of sudden trouble or danger.

youdao

动物们在结伴同行时，总是采取一种适当而合理的走法，就是排成竖行，而不是横跨整个路面。因为如果那样走，在突遇麻烦或危险时，就不便互相支援协助。

Animals when in company walk in a proper and sensible manner, in single file, instead of sprawling all across the road and being of no use or support to each other in case of sudden trouble or danger.

youdao