a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
同义词:scandium??/??Sc??/??atomic number 21
a state in the Deep South; one of the original 13 colonies
同义词:South Carolina??/??Palmetto State??/??SC
a permanent council of the United Nations; responsible for preserving world peace
同义词:Security Council??/??SC
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