A mythical(imaginary) creature, the dragon was believed to have lion's claws, scaly skin, and fiery breath.
A、legendaryA
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Formulatedin1823,theMonroeDoctrineassertedthattheAmericaswerenolongeropentoEuropeancolonization.
Formerly,intheUnitedStates,manynursesworkedasprivatedutynursesratherthaninhospitals.
Some sea urchins海胆 have venomous (toxin) spines
Urban renewal programs strive to upgrade areas that are becoming slums.
Themegaphone(microphone)makesthevoicesoundlouderbecauseitpointssoundwavesinonedirectionandkeepsthemfromspreadingoutinalldirections.
