【Theysawhowthespaceshuttletookoffinspaceandlaterlandedonearthagain.是什么意思?快!急!重新写：LastWednesday,MrChantookhisclasstotheSpaceMuseum.First,thechildrenwatchedamovieaboutspacetravel.Theysawhowthe】

　　Theysawhowthespaceshuttletookoffinspaceandlaterlandedonearthagain.是什么意思?

　　快!急!

　　重新写：

　　LastWednesday,MrChantookhisclasstotheSpaceMuseum.First,thechildrenwatchedamovieaboutspacetravel.Theysawhowthespaceshuttletookoffinspaceandlaterlandedonearthagain.Itwasveryexcitingandthechildrenfeltthattheyweretravellinginspacethemselves!Afterthemovie,MrChantookthemtoseesomemodelsofrocketsandthespaceshuttle.Themodelslookedveryreal,buttheyweresmaller.Thechildrenalsosawsomemoonstones.TwoAmericanslandedonthemoonin1969.TheyputanAmericanflagthere.Thentheybroughtsomstonesbacktotheearth.Beforethechildrenleft,theywatchedavideoshowaboutpeoplelivingandworkinginaspacelad.Thespaceladwasverybig.Therewerekitchens,bathrooms,bedroomsandabigworkshopforpeopletoworkin.Thepeoplecouldstayinthespaceladformonths.

　　什么意思？

　　快一点可以有悬赏分！！！！！！！！！！！！