It's still minus 20 degrees centigrade, 此时温度还是零下20摄氏度

94. But producing the egg has taken its toll.
    但体力也在产蛋的过程中消耗殆尽
95. The females no longer have the energy to incubate.
    雌企鹅再也没有孵蛋的力气
96. The male takes over.
    任务便交给了雄企鹅
97. It's still minus 20 degrees centigrade,
    此时温度还是零下20摄氏度
98. so the transfer must be done quickly
    所以交接过程必须迅速完成
99. or else the egg will freeze.
    否则蛋会冻坏
100. With no bare rock to nest on,
     没有裸岩可以在上面筑巢

来自《行星地球 第一季 第六集 Planet Earth S01E06 冰雪世界》第 97 行