蓉蓉細語
這是我的小貓咪 -- 薯蓉 & 薯波 -- 與我的生活日記, 歡迎光臨~
Sunday, August 24, 2008
Opportunity Cost
今日本來有地方要去,但係真係好唔想去...計過opportunity cost 之後,都係決定唔去喇...我唔去嘅cost 只係$100,不過如果去嘅cost 就係︰$100 + 數小時 + 車費 + 食飯錢 + 冇得睇奧運閉幕典禮...
今日好曳,為咗唔去呢個地方講咗個大話,要怪就只好怪自己當日太蠢,點解要話自己今日應該得閒呢?我發誓一定唔會再有下次... >.<
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