"是时候改变这个国家的文化了"

Simplified Meaning:

Imagine you live in a town where everyone always throws trash on the streets. It's dirty, and people are often complaining about the mess, but no one is doing anything to keep it clean. One day, someone suggests that everyone should start using the trash bins that were already there. Gradually, more and more people start using the bins, and the streets become cleaner. In a similar way, when the quote says to change the culture in a country, it means that people need to start behaving differently to fix a bigger problem. If everyone begins to take small, positive actions, like being more respectful or honest, the entire community or country can become a better place to live. For example, if there is a culture of dishonesty, people should start being truthful in their dealings. Over time, these small actions will lead to a significant improvement in how everyone lives and interacts with each other.