Unreturnable
a. 不能返回(或回收)的,無法歸還(或償還)的
??? 情景例句
Oh, thank you!
噢， 謝謝你！
Which one is more expensive?
哪一個是比較貴的？
philosophers by selling wisdom and priests by selling spiritual comfort.
牧師靠賣精神安慰為生。