The two met a big tiger in the forest, so a quickly took a pair of sneakers from the back and changed them. B was so anxious that he scolded: What are you doing? You can't run the Tiger even if you change your shoes! A said: I just need to run faster than you.
In the 21st century, no sense of crisis is the biggest crisis, and any industry will face many variables. When the tiger comes, we should all prepare our own running shoes!