跑道中間高，邊上低，比較平。我想大概是為了防止積水。

來源: xxq2001 於 2013-11-01 19:03:42 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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跑道中間高，邊上低， 比較平。 我想大概是為了防止積水。