unwritten 的英语意思
unwrittenunwritten /ʌnˈrɪtn/ adjective 
查看全部语言翻译 an unwritten rule, law, agreement etc is one that everyone knows about although it is not official不成文的规则、法律、协议等，指虽非官方规定但众所周知的规则、法律、协议等: 
unwritten rules of social behaviour社会行为的不成文规则
查看全部语言翻译 an unwritten rule, law, agreement etc is one that everyone knows about although it is not official不成文的规则、法律、协议等，指虽非官方规定但众所周知的规则、法律、协议等: unwritten rules of social behaviour社会行为的不成文规则