compulsory contribution造句

例句与造句

1. The buffer stock is financed via compulsory contributions from producing countries and voluntary contributions from consuming countries .
   缓冲库存所需资金是通过各生产国的强制性认缴和各消费国的自愿认缴来筹集的。
2. It's difficult to find compulsory contribution in a sentence. 用compulsory contribution造句挺难的