長通巧. we use more of the tong in book titles;

來源: 走馬讀人 於 2015-01-18 11:13:22 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (82 bytes)
回答: 似乎沒看出太大差別： 由 北京二號 於 2015-01-18 10:43:38

while the qiao denotes negative sometimes. more polluted when water is introduced.

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