active glacier

例句：

1. 1. The active glacier is a fascinating natural phenomenon.
   活跃的冰川是一种迷人的自然现象。
2. 2. The glaciers in the mountains are active and can be seen from a distance.
   山区的冰川是活跃的，可以从远处看到。
3. 3.Active glaciers are important for melting water during the summer months.
   活跃的冰川在夏季对融化水非常重要。