n.永久；持久
We no longer talk of the permanence of marriage. 如今，再没有人说婚姻要天长地久了。
We believe the permanence of the sun. 我们相信太阳的永恒。
The spoken word is immediate but lacks permanence. 口头之言便捷，但缺乏持久性。
Consumption was affected by permanence income which is determinant. 持久收入是影响消费的决定因素。
n.非永久性；暂时性
