If the ground is frozen it has become very hard because the weather is very cold.
It was bitterly cold now and the ground was frozen hard.
现在天气冷极了,地面冻硬了。
Frozen food has been preserved by being kept at a very low temperature.
Frozen fish is a very healthy convenience food.
冻鱼是一种非常健康的方便食品。
If you say that you are frozen, or a part of your body is frozen, you are emphasizing that you feel very cold.
He put one hand up to his frozen face.
他把一只手捂在他冻僵的脸上。
I'm frozen out here.
我在这儿要冻僵了。
Frozen is the past participle of freeze.
frozen stiff
Frozen stiff means the same as frozen.