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contribute v. 捐献;贡献 The Chinese Red Cross contributed a generous sum to the relief of the victims of the earthquake in Turkey. In 1964, Knight and Bowerman contributed $500 each to form Blue Ribbon Sports, the predecessor of Nike. Viewing abnormally large amounts of violent television and video games may well contribute to violent behavior in certain individuals. controversy n.论争, 辩论, 论战 After several nuclear disasters, a controversy has raged over the safety of nuclear energy. convenience n.适合;方便 The individual mobility, convenience, and status given by the private passenger car offer a seemingly unbeatable attraction. conventional adj 传统的，习惯的 Most new residential buildings in Sweden are already heated with ground-source heat pumps. Such systems consume almost no conventional fuel at all. converse adj. 相反的, 颠倒的 convince v. 使确信, 使信服 Knight convinced the company s officials of the potential for its product in the U.S. coordinate vt. 协调，调节n.同等的; 坐标(用复数) Clearly, protecting will come only through coordinated international efforts to control human population, stabilize the composition of the atmosphere, and preserve intact Earth s complex web life. | 
