单词 decadal 释义 decadal, a.|dkdl|[f. L. decas, decad-em, a. Gr. ά, ά- decade + -al1.]Of or relating to the number ten; belonging to a decade or period of ten years.1753Chambers Cycl. Supp. s.v. Arithmetic, Decadal Arithmetic, that performed by the ni...