But migration should not be considered good or bad; it is simply natural to the human condition. People migrate from poor countries, from middle-income countries, and from rich countries.
但移民其实不分好坏，它只是人类的一种天性。移民既来自穷国和中等收入国家，也来自富国。人们从北方迁移到南方，从南方迁移到北方，从南方迁移到南方，从北方迁移到北方。