✔ 最佳答案
首先澄清一點: 在下款 使用 Best Regards (或單獨用 Regards), 不是只用於 email 的, 普通的書信也可以使用的.
Regards 的大意是 祝君好運. Longman Contemporary Dictionary 的解說如下:
good wishes -- used when sending your good wishes to someone OR ..... used to end a letter in a friendly but rather FORMAL way. (p. 1380)
另引述一段網友的解釋如下:
The phrases "With Regards," and "With Best Regards," are used as general closings in all kinds of business letters to express good wishes or best wishes, even if the letter is a complaint.
The word "regards" came from the word "regard" which means, respect, affection, esteem. In business, though, "regards" never means affection. "Affectionately Yours," is commonly used to express affection.