freeze-thaw

例句：

1. 1.The lake froze over in the winter.
   冬天，湖面结冰了。
2. 2.After a long day of work, I thaw out by taking a hot shower.
   工作了一整天之后，我通过洗个热水澡来放松。
3. 3. The snow has begun to thaw, and the ground is starting to soften.
   雪开始融化了，地面开始变软。