名词
中文翻译：地壳层
同义词：
['earth surface', 'ground floor例句：1. The construction of the new building is set to begin on the earth floor.（新建筑的地基部分计划在地面开始建设。）2. The scientists conducted their experiments on the earth floor.（科学家们在地面上进行了他们的实验。）']
例句：
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1. The construction of the new building is set to begin on the earth floor.
新建筑的地基部分计划在地面开始建设。
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2. The scientists conducted their experiments on the earth floor.
科学家们在地面上进行了他们的实验。
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3.The engineers were working on the earth floor when a sudden earthquake struck.
工程师们在地面工作时，突然发生了地震。