基本解釋[土木建築工程]落後山區(qū)英漢例句雙語例句Baojing County which situated at the outlying mountainous area in Xiangxi, has a backward economical development.保靖縣屬湘西土家族苗族自治州，地処邊遠山區(qū)，經(jīng)濟發(fā)展落後，是國家級貧睏縣。a backward mountainous area更多例句專業(yè)釋義土木建築工程落後山區(qū)