原來5美元一加侖，漲價後是6美元一加侖，成本一樣，自然利潤增加了。

來源: 笑薇. 於 2022-06-15 20:18:22 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.