中文摘要：

为了更好地了解对流层准两年振荡（Tropospheric Biennial Oscillation，TB0）的最新研究概况及目前存在的问题，基于国家自然科学基金项目关于TBO的专门研究和近年来国内外的TBO研究工作，对TBO研究的最新进展作了综述。最新研究指出，热带暖海区的海．气耦合过程可以维持TBO循环而无需热带东太平洋的参与，表明了TBO确实是独立于ENSO而存在的海．气耦合系统，但是对于TBO的本质问题还需要多方面的深入研究。

英文摘要：

In order to have better understanding of the latest developments and existing unsolved problems on the Tropospheric Biennial Oscillation （TBO）, the latest developments on the TBO are reviewed based on special researches supported by the National Natural Science Foundation of China and other related studies around the world in recent years. It is indicated that air-sea interactions in the warm ocean alone can support TBO cycle without the forcing of the tropical eastern Pacific, which suggests that the TBO is an air-sea coupling system that is independent from ENSO. Nevertheless, extensive studies are still needed from multiple aspects to understand the essence of TBO.