In order to solve problems of reuse difficulty and low management efficiency of resourcebase system, a resource-base system model was proposed based on hierarchy semantics network.
And over the next 30 years an additional 2 billion people will need food — yet the natural resourcebase on which agriculture depends is growing increasingly fragile.
而且今后30年里，需要食物的人数要增加20亿—然而农业所依赖的自然资源基础正在变得日益脆弱。
3
So they certainly have the resourcebase to relieve the pressure.