normal switch

例句：

1. 1. The normal temperature for this region is 20 degrees Celsius.
   这个地区正常温度是20摄氏度。
2. 2.This is the normal price for a cup of coffee at Starbucks.
   这是星巴克一杯咖啡的正常价格。
3. 3. He's always been a normal person, never acting out of character.
   他一直都是个正常人，从不脱离角色。