The first one discusses the figure-ground phenomenon and concludes the characters of"figure"and"ground"by putting the phenomenon into special historical background.

从图底现象及对其常规解释的质疑入手，将图底现象放入具体的历史环境中进行再分析，总结“图”和“底”所具有的特征。

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The earthquake is the sharp burst occurred within the earth produced in certain van around the shock wave, ground vibration phenomenon caused inside.

地震是地球内部发生的急剧破裂产生的震波，在一定范围内引起地面振动的现象。

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The ancient collapse is a familiar ill geologic phenomenon in karst region, usually it is unsuitable for direct ground bearing stratum.

古塌陷是岩溶地区的一种常见的不良地质现象，一般不宜作为建筑物地基直接持力层。

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