now, less than three percent of that number remains. 现在,只有不足9000头
three hundred thousand blue whales roamed the oceans 30万头蓝鲸让海洋看上去充满生气
Sailfish, three meters long, are closing in on prey. 3米长的旗鱼正在接近猎物
These vents give off so much energy that some of the worms reach three meters in length. 这些火山口带来的丰富的能源 甚至可以让这些蠕虫长到3米长
Clouds of sulfides solidify into towering chimneys, as tall as a three story house. 硫化物冷却所形成的浓烟有3层楼那么高
the pressure here is three hundred times that at the surface. 压强是地面的300倍
In three years' time, it'll be one of the oceans most formidable hunters weighing sixty kilos. 再过3年,它将重达60公斤 成为海洋中强大的猎手
They were alive before the pyramids were built and were already three thousand years old when Christ was born. 它们在金字塔建造之前就发芽了, 耶稣诞生的时候它们已经活了3000年
contains three of the tallest trees on Earth. 世界树木高度排行前三名的树都在这里
A large humpback eats three tons of krill a day. 一头成年座头鲸每天能吃掉3吨磷虾