tons per centimeter immersion

例句：

1. 1.The book is 20 centimeters long.
   这本书有20厘米长。
2. 2.She measured the length of the wall with a tape measure.
   她用卷尺测量了墙的长度。
3. 3. The car is 50 centimeters wide.
   这辆车宽50厘米。