這個是否跟投資黃金類似，黃金有限。但也是很難quantify。

來源: NewLeaf2021 於 2024-05-04 11:40:15 [舊帖] [給我悄悄話] 本文已被閱讀：次

不懂更深的，虛心侯聽

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.