unwritten
adj
not written down 未寫下的; 不成文的. an unwritten law/`rule law/rule that is based on custom and practice, but is not written down 不成文法[規(guī)定].
??? 情景例句
Well, there must be something.
嗯 ,一定可以找到事做。
What do you do in your spare time?
空閑時間你干什么?
People are always talking about 'the problem of youth'.