Natural wonders that might otherwise take millennia to form 原本需要数千年才能形成的自然奇观
The first natural parks were created just over a century ago. 第一个自然公园创建于一个世纪前
A natural reserve devoted to peace and science. 这一自然储备只用于和平和科学
Antarctica is a continent with immense natural resources... 南极洲有着丰富的自然资源
the economy seemed like a natural and equitable alliance. 经济似乎是自然平衡的联盟
They are the only natural element 他们是唯一不断向天空生长的