This is an ice free harbor.

这是一个不冻港。

The report forecasts that the Arctic Ocean, within three or four decades, will likely become nearly ice free during the summer months.

这项报告预测北极海洋在30或40年间有可能会在夏季的那几个月里变成没有冰层覆盖的海面。

You can enjoy a free taste of ice cream.

你可以免费品尝冰淇淋。

While Dairy Queen gives kids free ice cream with their meal, some chains — including Wendy's and Sonic — have added fruits and vegetables.

虽然冰雪皇后给孩子提供免费冰激凌，但有些连锁店——包括温迪店和索尼克——给菜单添加了水果和蔬菜。

The way further south into the rest of America was through an ice-free corridor between the Rocky Mountains on the Pacific side, and the vast continental ice-sheet covering Canada on the other.

当年一道巨大的无冰走廊，一头向着通过太平洋一侧的洛基山脉一路向南延伸至美国各地，另一头深深延伸至被大陆冰层覆盖着的加拿大广袤土地。