Unlike the Arctic, where much of the sea ice is - at least for now - year-round, the Southern Ocean's sea ice is thin and seasonal.

与大部分海冰(至少目前如此)都有一年左右的历史的北极有所不同，南大洋的海冰很薄且是季节性的。

youdao

Unlike the Arctic, where much of the sea ice is — at least for now — year-round, the Southern Ocean's sea ice is thin and seasonal.

与大部分海冰（至少目前如此）都有一年左右的历史的北极有所不同，南大洋的海冰很薄且是季节性的。

youdao

Unlike the Arctic, where much of the sea ice is — at least for now — year-round, the Southern Ocean's sea ice is thin and seasonal.

与大部分海冰（至少目前如此）都有一年左右的历史的北极有所不同，南大洋的海冰很薄且是季节性的。

youdao