单词:perpetuities
(perpetuity 的复数) n. 永久, 不朽, 终身职位, 终身任期, 永久使用权
[经] 永续年金, 终身年金
[经] 永续年金, 终身年金
plural of perpetuity
n. the property of being perpetual (seemingly ceaseless)
n. the property of being perpetual (seemingly ceaseless)