unissued mortgage bond是什么意思

用法例句

Non-germination versus Germination, the couple of concepts, firstly appeared in Central Harmony, so too firstly opened the door of the Doctrine on Mind and Human Nature, which is included into by the concepts.

“未发已发”这一对概念最先出现在《中庸》中，从而也最先开启了讨论这对概念所属的心性论的法门。