duplicature band

例句：

1. 1. The teacher asked the students to review their notes on the duplicate tape.
   老师要求学生们复习他们在复制带上的笔记。
2. 2.The engineer used a special machine to duplicate the blueprints for the new building.
   工程师使用一台特殊的机器复制了新建筑的蓝图。
3. 3. The student handed the duplicate disk to his classmate for sharing.
   学生将复制磁盘递给他的同桌以便分享。