earning motivation的用法和样例：
例句
- At present, it is very common that many polytechnic students lack of motivation in English study.
摘要目前部分高职院校的大学生中普遍存在着学习动力不足的现象。 - Interest can arouse a powerful learning motivation and increase students' enthusiasm and desire to study which could keep them in an exciting and active mood of thinking.
摘要兴趣可以激发强大的学习动力，可以调动学生学习的积极性和主动性，始终保持兴奋的状态和积极的思维活动中。
