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

来源: 走马读人 2015-01-18 11:13:22 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读: 次 (82 bytes)
回答: 似乎没看出太大差别:北京二号2015-01-18 10:43:38
while the qiao denotes negative sometimes. more polluted when water is introduced.
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