I supply the service, they act as middlemen.

我提供服务 他们做中间人。

She now supplied the room service and salted cod's-roe.

她提供房间服务，并掩鳕鱼鱼子酱。

The footprint approach does the reverse, comparing humanity's ecological impact-resources consumed and waste produced-with the amount of productive land and water available to supply key ecosystem services.

而“生态足迹”方法正好相反，它将人类对生态的影响——所消耗的资源和产生的废弃物——与现有的能提供关键生态系统服务的生产性土地和水的数量进行对比。

(i) Some assets produce a yield or output q, measured in terms of themselves, by assisting some process of production or supplying services to a consumer.

(i) 某些资产通过协助某些生产过程或向消费者提供服务来产生收益或产出 q，以自身衡量。