If you can't fly then run, if you can't run then walk, if you can't walk then crawl, but whatever you do, you have to keep moving forward.

如果飞不起来，那就跑；跑不动，那就走；走不了，那就爬。无论怎样，都要继续前行。

>>点我填写答案与查看答案,欢迎挑战