幹枯的樹幹不倒，環境需要非常幹燥，譬如沙漠中的胡楊樹。如果又種菜又種花草，死去的樹根遇水會爛掉，樹幹一定會倒。

來源: 焚琴煮鶴. 於 2015-07-23 06:18:04 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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