After a round of rumbas and cha-chas the band, for a nice change of pace, played a fox trot.

为了好好改变花样，乐队在演奏一轮伦巴舞和恰恰舞曲之后，换了狐步舞曲。

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The change patterns of precursor data and the judging indexes before most of earthquakes for medium-to-short-term earthquake prediction in southwest region of China and the cha…

并进行了西南地区前兆短期预测方法及强震短期预测时、空、强指标和判据的研究和西南地区地下流体新观测方法及灵敏测项的研究。

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Indeed, the unpredictable congressmen might also scotch any attempt at charter change, or cha-cha, the local term for constitutional reform.

ECONOMIST: President Arroyo toughs it out