thick ice

基本解释

These remarkable pictures show how beluga whales help human visitors to swim under the thick ice.
以下這些不平常的圖片展示了白鯨幫助人類訪客在厚冰層下遊泳的情景。
Not long after setting off, Eliyah spots a grey seal resting on some thick ice. He stops the boat and Tommy jumps out.
出發後不久，艾裡亞就看見一頭灰色的海豹在一塊厚冰上休憩，他停下船來，湯米躍身跳出船去。
However, the old, thick ice that moved into this region is now beginning to melt out, which could further deplete the Arctic’s remaining store of old, thick ice.
然而，現在這些流入該地區的常年厚冰卻開始融化，這可能會進一步消耗北極賸餘常年厚冰的儲存量。

Submarine crews practice surfacing the 8, 000-ton submarines, directly through thick ice or in nearby open waters, and learn to avoid hitting another ship.
FORBES: U.S. Navy Scrambles for Piece of Arctic Pie
That's a lot for a boat that might sit in the shed for years at a time, waiting for the right conditions of smooth, thick ice.
FORBES: Shiver Me Timbers