excavation造句

The bad weather has hung up the work of excavation.
天气不好耽误了挖掘工作.

More discoveries were made as the excavation proceeded.
挖掘期间陆续有所发现.

The present relief of more than 1000 ft was due to excavation.
现在的地形起伏超过1000尺是削蚀作用造成的.

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