normal burette

例句：

1. 1. The normal temperature for this region is 20°C.
   该地区的正常温度是20摄氏度。
2. 2.This is the normal way of doing things in our culture.
   这是我们文化中正常做事的方式。
3. 3.She was surprised to find that her normal routine had been disrupted.
   她惊讶地发现她的正常日程被打乱了。