floe

A lonely polar bear was spotted standing on a drifting ice floe.

(Chinese) 有人发现一只孤独的北极熊站在一块漂流的浮冰上。

The ship's captain had to navigate carefully to avoid a massive floe in the Arctic waters.

(Chinese) 船长必须小心航行，以避开北极海域中巨大的浮冰。