Arctic ice

例句：

1. 1. The Arctic ice is melting at an alarming rate.
   北极冰正在以令人担忧的速度融化。
2. 2. The polar bears rely on the Arctic ice for hunting and survival.
   北极熊依赖北极冰进行狩猎和生存。
3. 3. The melting Arctic ice is causing sea levels to rise.
   北极冰的融化导致海平面上升。