yoga says
13 years ago
微積分 看不懂頭暈暈 :-&
掰噗~ says
13 years ago
不會吧? :-&
星星是忻忻 says
13 years ago
:-&
yoga says
13 years ago
lsyy432: 謝忻也有學微積分?
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星星是忻忻 says
13 years ago
我有偷偷的看了一下！看一下我就不行了= = 大概3頁
yoga says
13 years ago
lsyy432: 真的很難 這幾天算到快吐了 :'-(