After several days at sea, the male bear finally makes landfall, 在海上漂流了几天之后公熊终于登陆了
As the days shorten, its warmth is withdrawn from the continent. 随着白昼的缩短,南极大陆变得越来越冷
means that desert elephants can only refill their tanks once every four or five days. 意味着沙漠里的大象 只能每隔四五天喝饱一回
The bats left Mexico a few days earlier to escape the heat of summer 蝙蝠数日前离开墨西哥以躲避酷暑
and reduce visibility for days over areas the size of Britain. 所到之处能见度骤降为零 几天内横扫的地区比英国还大
It takes more than 30 days to complete one. 每个燕窝得花上30多天才能完工
It's six days since the bears emerged 现在是北极熊现身后的第6天