旧窗帘 / 因为 / 受潮 / 边缘 / 逐渐 / 下垂 / 几乎 / 碰到 / 了 / 地面旧窗帘因为受潮,边缘逐渐下垂,几乎碰到了地面。Because the old curtains absorbed moisture, their edges gradually sagged until they almost touched the floor.