medium bubbling rales

例句：

1. 1.The temperature is medium in this region.
   这个地区的温度适中。
2. 2. He has a medium height and build.
   他的身高和身材中等。
3. 3.The medium-sized company has grown rapidly in recent years.
   这家中等规模的公司近年来增长迅速。