Over the years, letters of appreciation, words of thanks, and visits from former students provide the encouragement and reassurance that all the effort has been worth it.

• 这些年来，许多表扬的信件、感激的词语和已毕业的学生回校探访，对教师们来说都是激励的泉源，同时也一再的证明他们所付出的努力是值得的。