Sleet forms when rain falls through a layer of cold air.

当雨穿过一层冷空气便成霰。

youdao

Sleet forms whe fain falls through a layer of cold air.

当雨穿过一层冷气层便成霰。

youdao

Sleet forms whe fain falls through a layer of cold air.

当雨穿过一层冷气层便成霰。

youdao