耗时五年才钻到了基岩。It took five years to drill down to bedrock.石油或石油摄影地质主要是研究基岩情况的.Petroleum or oil photogeology is primarily an evaluation of bedrock conditions.它可能是通过基岩的腐蚀和崩解就地生成的.It may develop in place by the decay and disin...
You seem to be labouring under considerable misapprehensions.你似乎存在相当大的误解。It requires no little courage on his part to bear this variety of misapprehensions.在他那方面,他需要有不小的勇气来忍受这不同的误解....