weasand

例句：

1. 1.The weasand of sand is a common sight in the desert.
   沙漠中的沙子是常见的景象。
2. 2. The weasands are scattered across the landscape.
   沙丘遍布在景观中。
3. 3. We need to find a way to control the weasand before it causes damage.
   我们需要找到一种方法来控制沙尘，以免造成损害。