Mankind appropriates about a quarter of what is known as the net primary production of the Earth (this is the plant tissue created by photosynthesis)—a lot, but hardly near the point of exhaustion.
Mankind appropriates about a quarter of what is known as the net primary production of the Earth (this is the plant tissue created by photosynthesis)—a lot, but hardly near the point of exhaustion.
人类消耗了1/4的被称作地球主要净产出的产品（由光和作用产生的植物组织），虽然很多，但离耗尽还远得很。