求翻译：每个人在每个时期对“老师的意义”的理解都是不同的，但唯一不变的是其中一种坚定的信念，一种教育的信念，一种神圣的使命感，一种深深的责任感。老师就是一本读不完的书。因为给孩子一杯水，老师的一桶水已经不够了，需要老师的是一条源源不断的河。是什么意思？

Each person in each period of the "teacher's sense of" understanding is different, but the only constant is one of the firm belief, a belief in education, a sacred mission, a deep sense of responsibility. Teacher is a well stocked book. Because the child a glass of water, a bucket of water has enoug

Every individual in every period of the "Teachers' sense of understanding is different, but the only thing that remains unchanged is one such firm conviction, a type of educational and faith, a sacred sense of mission, and a deep sense of responsibility. A teacher is not finished reading the book. g

Each person in each time to “teacher's significance” the understanding all is different, but only invariable is one kind of firm faith, one kind of education faith, one kind of sacred sense of mission, one kind of depth sense of responsibility.Teacher is a book which does not read off.Because of for

Everyone in each period on the "significance of the teacher" understanding is different, but the only constant is one of strong faith, a belief in education, a sacred mission, and a deep sense of responsibility. The teacher is a not finish reading the book. Because children have a glass of water, th

Everyone in each period on the "significance of the teacher" understanding is different, but the only constant is one of strong faith, a belief in education, a sacred mission, and a deep sense of responsibility. The teacher is a not finish reading the book. Because children have a glass of water, th