constant humidity cabinet

例句：

1. 1. The sunshines constantly throughout the day.
   太阳整日不断地照耀。
2. 2. The river flows constantly, never ceasing.
   河流不断流动，从未停歇。
3. 3. The constant rain made thestreets muddy.
   持续的雨水使街道变得泥泞不堪。