You wouldn't know how delicious a dish is without tasting it; And a wonderful doctrine wouldn't make sence if you don't learn it. Thus, shortages are found after you've learned; and puzzled would you feel after you've taught. Knowing you yourself have shortages, you can make self-reflections; and knowing you yourself are puzzled, you will be able to make improvements. So we say, teaching benefits teachers as well as students.自己翻的~~翻得不好请别见怪啊。。。
