why do people live by the unwritten rules?寫成一片大概能說3至4分鐘的演講稿大家幫幫忙，先謝謝大家了！

熱心網友

why do people live by the unwritten rules?病句，不通，介詞by誤用，不妥。。不會寫，我太垃圾。。不好意思。