unwritten constitution

• n. [律]不成文宪法

例句

用作名词 (n.)

1. China has a written constitution.
   中国有成文宪法。
2. According to their understanding of the unwritten British Constitution, taxation without representation violated the law.
   根据他们对英国不成文宪法的理解，对没有议会代表的地区课税是违反宪法的。