Unwritten constitution

美 [ˌʌnˈrɪtn ˌkɑːnstɪˈtuːʃn]英 [ˌʌnˈrɪtn ˌkɒnstɪˈtjuːʃn]

1

The clarifying the characteristics of formation and forms of unwritten constitution is the basis for distinguishing the written and unwritten constitutions .

以两类不同宪法类型的特征为标准，就能够对不成文宪法国家类型形成较为清晰的判断。
2

Britain has an unwritten constitution , and the United States has a written constitution .

英国有不成文的宪法，美国有成文的宪法。