permissible temperature

例句：

1. 1.The temperature is permissible for outdoor activities.
   这个温度适合户外活动。
2. 2. The temperature has dropped below the permissible limit.
   温度已经降到了允许的极限以下。
3. 3.The temperature was permissible for sleeping, but not for eating.
   这个温度适合睡觉，不适合吃饭。