Solidgeometryhasenabledastronomerstocalculatethepositionsoftheheavenlybodiesrelativetooneanother.
A、ontopofSomeanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.
Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.
Peoplewhodonotsleepenoughtendtobecomeirritable.
Formerly,intheUnitedStates,manynursesworkedasprivatedutynursesratherthaninhospitals.
In1974HenryAaronbrokeBabeRuth'smonumentallifetimerecordof714homeruns.