[解析]
I was both excited and nervous about this new challenge.Ten chin﹣ups seemed like a significant leap from where I had started,but the belief my trainer had in me fueled my determination.I accepted the challenge and got to work.Every morning,I pushed myself harder than before.The numbers slowly climbed:three,four,five and then seven chin﹣ups.It was challenging,but I remembered the lesson that I had learned.【高分句型一】The most difficult tasks can be achieved through consistent effort and belief in oneself.(描写了作者接受新挑战﹣﹣﹣10个引体向上﹣﹣﹣的经过,及为了实现目标作者所做的努力)
Finally,one morning,it happened.I pulled myself up to the bar and completed ten consecutive chin﹣ups.I couldn't contain my excitement and joy.I felt a profound sense of accomplishment.I achieved my goal through persistence.I had made it a reality.As I continue my fitness journey,I carry this lesson with me:No matter how daunting the obstacle may seem,the belief and persistence can help me overcome it.【高分句型二】It's not just about physical strength but also about mental fortitude and the power of setting and achieving goals.(描写了作者终于通过坚持不懈的努力达到了目标和感悟)