Sea ice abuts the floating glacier tongue except in three places along the front of the glacier.These ice-free areas are called polynyas.
从图上可以看到，海冰（Seaice) 和漂浮着的冰川紧靠着，只有在冰川前边的三处地方例外，这种没有冰的区域称作冰穴（Polynyas）。
A group of seals rests on floating ice in front of muir glacier in glacier bay, Alaska.
一群海豹躺在阿拉斯加冰川湾谬尔冰川内的一块浮冰上休息。
A group of seals rests on floating ice in front of muir glacier in glacier bay, Alaska.
一群海豹躺在阿拉斯加冰川湾谬尔冰川内的一块浮冰上休息。
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