reed bed

例句：

1. 1. The reed bed was filled with water and covered in reeds.
   芦苇床被水填满，上面覆盖着芦苇。
2. 2. The reed bed is a popular spot for birdwatching.
   芦苇床是观鸟的热门地点。
3. 3.The reed bed was used as a natural barrier to protect the wetland.
   芦苇床被用作天然屏障来保护湿地。