求翻译：不断开导我们，让我们成长懂事，他们还毫不保留的将自己的知识无私的给予我们，我们难道还有理由抱怨他们平时的严厉吗是什么意思？

Continue to enlighten us, let us know better the growth, they also have no retention of selfless giving us their knowledge, we do also have reason to complain about their usual harsh