不断向上的,精益求精的细刨花
Excelsior \Ex*cel"si*or\, a. [L., compar. of excelsus elevated, lofty, p. p. of excellere. See {Excel}, v. t.] More lofty; still higher; ever upward. Excelsior \Ex*cel"si*or\, n. A kind of stuffing for upholstered furniture, mattresses, etc., in which curled shreds of wood are substituted for curled hair.
excelsior n : thin curly wood shavings used for packing or stuffing [syn: {wood shavings}]