count off

• • 报数：

    The soldiers counted off from right to left.

    兵士们从右至左报数。

  • 点数：

    At the beginning of each class, I count off the students.

    每节课开始我先数一下学生的人数。

  • 挑出：

    The teacher counted off five boys to help them.

    老师挑出5个男孩帮助他们。