precedents
n. 判例；引用单元
例句
There is no lack of precedents.
不乏先例。
《新英汉大辞典》
Though Baldwin's use of an all-White cast seemed brave when the novel was first published, there were notable precedents.
尽管在小说刚出版时，鲍德温使用全白人演员的做法似乎很勇敢，但也有一些值得注意的先例。
There are few precedents for this sort of retrospective legislation.
此类有追溯效力的立法还鲜有先例。
《柯林斯英汉双解大词典》
