十年間[的]
Decennary \De*cen"na*ry\, n.; pl. {Decennaries}. [L. decennium a
period of ten years; decem ten + annus a year.]
1. A period of ten years.
2. (O. Eng. Law) A tithing consisting of ten neighboring
families. --Burrill.
decennary
n : a period of 10 years [syn: {decade}, {decennium}]