![denser造句怎麼寫]( "denser造句怎麼寫")
- Songbirdbonesmaybehollow,butthey'reactuallydenserthanthebonesofmammalsofthesamesize.Theprocessblastedoutmaterialtoformthebubblestructureofglowinggasagainstdensermaterialinasurroundingmolecularcloud.Buildingrestrictionshavecausedgrowingpopulationstos...
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