Anoversight遗漏(miss,overslaugh)inproofreadingoftenresultsinprintederrors.
A、AninconsistencyPeople who do not sleep enough tend to become irritable .
When carbon is added to iron in the proper proportions , the result is steel.
Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.
Despite the proliferation of other faster modes of transportation, the railroads remain the largest carriers of intercity freight in the United States.
TheNativeAmericaninterpreterSacajaweawasavaluablememberoftheLewisanddarkexpeditionin1805.
