如何使用 "unwritten" 造句

1. Learn the unwritten rules of loud , lively conversations
学习大声地、有生气地谈话的不成文法则
2. He broke two of the unwritten rules of the pri 's authoritarian regime .
他打破了革命制度党独裁政体两个不成文的规定。
3. It is one of the unwritten laws of business , a matter of simple percentages .
这句话是商业经营的不成文规则,就是简单的百分比问题。
4. Over past years , with a few exceptions , this policy has been an unwritten norm .
过去几年,除少数特例外,该政策一向是一个不成文的准则。
5. It is an unwritten rule of french politics that presidents must distance themselves from the paris elite .
法国政界有个不成文的规定,那就是总统的出身必须和巴黎精英界划清界限。