短语词组短语medium ice -floe 中浮冰块ice e floe 冰川Vast Ice -floe 巨浮冰块ice fall floe 浮冰ice -floe 冰盘;海冰tracking along ice -floe 沿浮冰外缘航行ice floe survey 冰凌调查small ice floe 小冰盘ice float ice floe 冰浮块 返回 ice floe