A 25-kilometre-long fissure erupted 12 km3 of lava over the course of seven months.

25 k m长的裂缝在7个月内喷发了12 km3的熔岩。

youdao

WaterFreshwater only makes 2.5% of the total volume of the world's water, which is about 35 million km3.

世界淡水资源面积是3500万公倾，占地球总体水资源的2.5%。

youdao

Every year, thousands of cubic kilometres (km3) of fresh water fall as rain or snow or come from melting ice.

每年，雨雪和融冰所带来的淡水资源有几千立方千米。

youdao

The volume of freshwater resources is around 35 million km3, or about 2.5% of the total volume.

FORBES: Connect

The total volume of water on Earth is about 1.4 billion km3.

FORBES: Connect

Of these freshwater resources, about 24 million km3 or 70% is in the form of ice and permanent snow cover in mountainous regions, the Antarctic and Arctic regions.

FORBES: Connect