measure another's foot by one's own last

例句：

1. 1. The teacher measured the height of the students with a ruler.
   老师用尺子测量了学生们的身高。
2. 2. The engineer measured the distance between two points on the map.
   工程师测量了地图上两点之间的距离。
3. 3.The doctor measured her blood pressure before giving her medication.
   医生在给她用药前测量了她的血压。