轉瞬為風說微積分... http://s726.photobucket.com/albums/ww267/RachelLin28/onion_xd/50.gif - #gfkibc - Plurk

轉瞬為風說

13 years ago

微積分... http://s726.photobucket.com/albums/ww267/RachelLin28/onion_xd/50.gif

13 years ago

借轉

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