those are common senses, and are sporadic around various website

來源: englishreader 於 2009-09-13 12:30:10 [] [舊帖] [給我悄悄話] 閱讀數 : (56 bytes)
本文內容已被 [ englishreader ] 在 2009-09-15 05:58:49 編輯過。如有問題，請報告版主或論壇管理刪除.

The orignal author didn't cite any source on his rules?

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