The sentry is above the clouds. Looking at the map, the sentinel is hidden in the folds of the mountain. At an altitude of more than 4000 meters, the sentry tower pierces the sky. Standing on the sentry tower, people look up and marvel at the magic of nature. On the simple road winding up from the foot of the mountain, signposts are erected every 10 meters along the road for snow pushing. When heavy snow comes in winter, the pole head will even be submerged. The deepest snow is higher than the loader. Corporal Hui Guixi, because he had the experience of operating the loader before joining the army, did not let him shoulder the heavy responsibility of pushing snow, and kept the supply line to the outpost open at any time. A heavy snow covered the mountain road, and the driver who came to deliver the dishes had to look at the snow and sigh. Hui Guixi was ordered to drive the loader to shovel snow. About 600 meters away from the outpost, the snow was too thick. He drove with full power and the car went forward at a high speed. Half of the right front wheel was hanging on the edge of the cliff. Deng Linzheng, the instructor of the car, was in a cold sweat. Pushing snow is the battle of the brave here. Once, the loader was lying in the snow and could not move forward or backward. The snow covered the tires and stood against the chassis. Hui Guixi hurriedly went to the bottom of the car to shovel snow. Seeing that the handle of the shovel could not be used, he was so worried that he simply started to dig snow directly. About half an hour later, the loader finally managed to get out of the trap, but his hands were red with cold and his eyebrows were covered with frost. Hui Guixi dragged her almost frozen body back to the cab and blew at the warm air outlet. Her hands regained consciousness 3 minutes later. What bothered Hui Guixi was that the wind at night often made his day's efforts futile. The strong wind wrapped the snow grains and covered the roads that had been pushed, forcing him to start again. Therefore, throughout the winter, Hui Guixi was the busiest person at the outpost. The ultraviolet ray on the plateau is strong, and the officers and soldiers at the sentinel are suntanned and look old. Deng Linzheng, just in his early 30s, looks like a middle-aged uncle in his 40s. The last time he went home for a blind date, the woman suspected that he had lied about his age. In desperation, Deng Linzheng had to take out his identity card to show his innocence. In March this year, the second level staff sergeant Lu Shiwen came home from vacation. His wife Hu Yuefen exclaimed, "Why are you so black?" Of course, Hu Yuefen was surprised. Just a few days before Lu Shiwen's vacation, when the couple chatted on video, her husband's skin color was still normal. "It is the beauty function of the mobile phone that deceives you." Lu Shiwen smiled and resolved the embarrassment. After returning from vacation, Hu Yuefen stuffed several bags of facial mask into her husband's suitcase and told him to pay attention to maintenance. Lu Shiwen followed his wife's kindness, but he gave up within a few days. The whitening effect of the facial mask is far less than the darkening speed of ultraviolet rays. Company commander Peng Jie took off his glasses, and the white of the eye socket was in sharp contrast to the black of the whole face. Peng Jie led the most patrols here. In the vast snow field, the dazzling sunlight reflected to his face through the snow, and the strong wind "played an auxiliary role", which made his face dark in the long run. The patrol road, which is as famous as the outpost, has an altitude of more than 5300 meters at the mountain pass. The mountain is a narrow path with a slope of about 70 degrees. It is snowy all the year round, and no one complains. The black skin of officers and soldiers reflects the length of sentry duty. However, there were exceptions. Corporal Ma Xiaolong was sunburned in only half a day. Shortly after he went to the sentry, it cleared up after the snow. Ma Xiaolong suffered