keeping the roots from freezing

例句：

1. 1. The team is keeping a close watch on the situation.
   该团队正在密切关注情况。
2. 2. The scientist kept careful notes during his experiments.
   科学家在实验中做了仔细的记录。
3. 3. They are keeping an eye on the weather forecast for the upcoming storm.
   他们正在关注即将到来的暴风雨的天气预报。