"ostrich policy" is a widely used international idiom, which exists in major European languages such as English, French, Russian and German, and has been absorbed into Chinese idioms.
When an ostrich is chased, it thinks that it can't run away, so it will stick its head into the sand and think that it can't see the pursuer, and it will get rid of the pursuer. This is the ostrich's strategy and policy.
The "ostrich policy" means that when you are in trouble, instead of solving it, you try your best to avoid it, thinking that the trouble will pass, but in fact, the trouble still exists.
Similar to the meaning of "self-deception"