The Native American interpreter Sacajawea was a valuable member of the Lewis and dark expedition in 1805.
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Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.
Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.
Anoversight遗漏(miss,overslaugh)inproofreadingoftenresultsinprintederrors.