Communicationisoneofthemostimportantbondsthatholdculturalsystemstogether.
A、obligationsWhileBillieHolidaydidnotinventthemusiccalled"theblues",shemostassuredlyhelpedpopularizeit.
Thefirstpaperwasmadefromthebarkofthemulberrytree.
Whencarbonisaddedtoironintheproperproportions,theresultissteel.
Theflowerbudofawaterlily百合opensatsunsetsince.itsopeningistriggered(commence).bythedecreasedlight.
ThefuturesurvivalofthebaldeagleisstillanimportantAmericanecologicalconcern.