slush pit

例句：

1. 1. The slush pit was so deep that it was hard to see the bottom.
   这个冰坑太深了，难以看到底部。
2. 2.The kids were playing in the slush pit, enjoying the cold weather.
   孩子们在冰坑里玩耍，享受着寒冷的天气。
3. 3.The slush pit was a popular spot for ice-skating and sledding.
   冰坑是溜冰和滑雪的热门地点。