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用“boreholes”造句大全，boreholes造句

用“boreholes”造句大全，boreholes造句

2017-09-15
Theyalsomaintainedboreholesandwaterpumpsinthecamps.Inmanycountries,drinkingwaterisobtainedfromgroundwatersourcessuchassprings,Wellsandboreholes.Theabovestatedmethodwassuccessfullyappliedto23largediame...