open pack ice
常见例句
- Icebergs are created when chunks of pack ice break free and float off into open sea.
当大块积冰断裂、漂浮至远海的时候，冰山就形成了。
http://chazidian.com - "The reason for not returning the penguin directly to Antarctica is that Emperor penguins of this age are usually found north of Antarctica on pack ice and in the open ocean, " he said.
没有直接将企鹅送回南极洲的原因是这种年龄的帝企鹅经常活动在南极大陆北部的浮冰群和开阔海域活动。 返回 open pack ice