Ask for a 350-word composition with "persistence" as the topic, using metaphor and comparison! ! !

Xiaoming is a fourth-grade student in a primary school. His grades are among the best, but sports is his biggest headache.

On this day, Teacher physical education class announced: "Today's content is sprint." Everyone is very excited, because they all run very fast, while Xiao Ming sits in his seat and says nothing.

Arrive at the playground, prepare for practice and start sprinting. Xiaoming is a member of the first group. "Ready, run!" Under the teacher's cry, everyone else flew out like an arrow, and only Xiaoming ran desperately. In a blink of an eye, others have reached the finish line, and Xiao Ming is still running for more than ten meters, "5 meters, 4 meters, 3 meters ..." In the shouts of everyone, Xiao Ming finally completed the sprint of 100 meters. The students sitting at the back must not have seen it at this time. At this time, Xiao Ming was thirsty, but no one handed him a bottle of water. Everyone gulped down water to replenish water, but no one took care of Xiaoming's fatigue. Xiao Fang seems to see through Xiao Ming's mind. She can't have a sip of water. Xiao Fang strode to Xiao Ming and handed him a bottle of water. He said: "Xiao Ming, although your sprint performance is not particularly good, I believe that as long as you persist and work hard, you will succeed!" " Xiaoming was very moved. He picked up the bottle of caring water and drank it. Xiao Ming's confidence suddenly doubled. He decided that he must stick to it.

After school, everyone walked out of the campus together, talking and laughing. At this time, Xiao Fang ran to the playground because he left his clothes on the playground. Suddenly, she saw a figure, vaguely. When she walked in, she found that Xiao Ming insisted on running because of physical education class's words to Xiao Fang.

Xiao Fang is very excited that his own bottle of water can bring such great persistence to others.

At the 10 sports meeting of their school, Xiaoming finally won the men's 100m/first place, and broke the school record.