wade across a stream/river by grading its bottom

來源: wave_forest 於 2011-09-16 13:17:26 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)
回答: 摸著石頭過河？？ 由 halfdummy 於 2011-09-15 22:55:12
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