Regretfulness
n. regretful（懊悔的；后悔的；遗憾的；歉意的）的变形
🗣️ 情景例句
She suffered terribly when her son was killed.
儿子被杀，她痛苦至极。
Misfortunes tell us what fortune is.
经过灾难方知福。
If you want to send a letter to an office abroad that is in a different time zone, you can send a fax, and it will be received even though the office is not open.
如果你要寄信到不同时区的国外办公室，你可以发个传真，即使办公室不开门，信也会被收到。