Ko-Meng Tu feels
15 years ago
趨近於0但始終不等於0
李建德 ♂ says
15 years ago
微積分?
Ko-Meng Tu
15 years ago
我都用feel了...你覺得勒 (annoyed)
掰噗~ says
15 years ago
掰噗在五樓 (highfive)
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