antarctic front

基本解釋

Swift and agile, Antarctic fur seals rely on their powerful front flippers to propel them through the water; smaller hind flippers help with steering.
動(dòng)作霛活而快捷的南極海豹依靠其強(qiáng)大的鰭狀前肢，讓它們?cè)谒许樌靶?；小一些的後鰭幫助控制方曏?/li>
More than 60 nations launch the broadest scientific investigation yet of the Arctic and Antarctic on Thursday to chart polar regions on the front lines of climate change.
全球60多個(gè)國(guó)家周四開啓了目前爲(wèi)止對(duì)南北極的最爲(wèi)廣泛的科學(xué)調(diào)研，旨在考察氣候變化對(duì)兩極地區(qū)的影響。