frozen-in field

例句：

1. 1. The farmer had to clear the frozen-in field before planting the crops.
   农民在播种之前必须清除冻土。
2. 2.The frozen-in field was a great source of food for the local wildlife.
   这个冻结的田野是当地野生动物的食物来源。
3. 3.The farmers were worried about the potential damage that could be done to the frozen-in field during the winter months.
   农民们担心冬季可能会对冻结的田野造成潜在的损害。