In summary, cities are more secure for people's health, easier to meet people's living needs and have better infrastructure, so the quality of life in cities is better.
To sum up, cities are more secure for people's health, more easily meet people's living needs and have better infrastructure, so the quality of life in cities is better.
To sum up, the city is more secure for people's health, easier to meet the needs of people's life, and has better infrastructure, so the quality of life in the city is better.<br>