美国经济学家在金融社团经济学领域做出了重要贡献。
American economists have made important contributions to the field of financial and corporate economics.
他为导弹和航天事业做出了重要贡献，被誉为“中国导弹之父”。
He made such important contributions to the missile and space programs that he was honored as "The Father of China's Missiles".
5年来，中国湿地面积增加了20.26万公顷，为水质和环境保护做出了重要贡献。
The area of wetlands in China has become larger over the past five years, growing by 202,600 hectares and making a great contribution to water quality and environmental protection.
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