Every day when I enter the gate of the community, I always see a group of lovely people: they wear dark overalls, stand there tiny, or help you open the door, or help you reverse, or patrol the traffic, or smile and the people passing by say "hello", goodbye. Yes, it's our lovely security guards. It's not easy to be a security guard. They have to stand guard and patrol, whether it's cold, hot or windy or rainy. As a service industry, it is our duty to serve the people. We will greet you in the best condition. Then we can not do without military training, a little rest, standing upright, turning left, turning right....