Fro

例句：

1. 1. The snow has turned the ground into a thick layer of frost.
   雪已经把地面变成厚厚的一层霜。
2. 2. The ice is so thick that it's almost impossible to walk on.
   冰太厚了，几乎无法行走。
3. 3. The cold weather caused the ground to freeze overnight.
   寒冷的天气导致地面一夜之间结冰。