A powered vessel should give way to sail—it is an unwritten rule of the sea.
机动船在遇到帆船时必须

行, 这是一条不成文的航行规则。
写下的;不成文的;口头的A powered vessel should give way to sail—it is an unwritten rule of the sea.
机动船在遇到帆船时必须

行, 这是一条不成文的航行规则。
They sinned against the unwritten rules of this meeting.
他们违反了这次会议的不成文规定。
声明:以上例句、词性分类均由互联网资源自动生成,部分
经过人工审核,
表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。