InthenortheasternUnitedStates,itrainsintermittently间歇地throughoutthespring.
A、steadilyFoodmustbemoistinordertohaveataste.
Blue-greenalgaegrowabundantlyinsaltmarshes.
Someseaurchins海胆havevenomous(toxin)spines
InthenortheasternUnitedStates,itrainsintermittently间歇地throughoutthespring.
Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.