是啊。。。我是google image出来的。。。红薯也叫wild yam.

- babyface (♥ 紫水晶之恋 ♥ ) at 2011-12-30 12:32:29 (y1795348)




http://www.google.ca/search?pq=peptide&hl=en&cp=7&gs_id=2y&xhr=t&q=wild+yam&newwindow=1&rlz=1G1GGLQ_ENUS282&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.r_cp.,cf.osb&biw=1024&bih=597&safe=on&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=HPT9TsrtPKnj0QHaivzQBQ
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