closed ballot

• 无记名投票

closed ballot的用法和样例：

例句

1. The election will adopt a secret ballot system.
   选举将采用无记名投票的方式进行。
2. They had progressive ideas about human rights, observance of democratic procedures and the value of a secret ballot.
   他们有着关于人权的先进思想，他们遵守民主程序，推崇无记名投票方式。