American economists have made important contributions to the field of financial and corporate economics.

美国经济学家在金融社团经济学领域做出了重要贡献。

He was awarded a prize for his contribution to world peace.

他因对世界和平的贡献获了奖。

This list ranked companies that make charitable contributions of a half million dollars or more.

这张清单列出了慈善捐款达到50万美元甚至更多的公司。