重點講解：
1. difference between
差別；差異；不同之處；
eg. That is the fundamental difference between the two societies.
那是這兩個社會之間的根本性差異。
eg. She can see the difference between good and bad.
她能看出好與壞的區別。
2. brand-new
嶄新的；簇新的；
eg. The rising sun suggests a brand-new day has come.
東升的太陽表明嶄新的一天已經來臨。
eg. When she returned, she found that a rock had fallen on her brand-new car.
當她回來的時候，她發現一塊石頭掉在她的新車上。
3. mark down
減價；降低…的價錢；
eg. Retailers will have to mark down prices sharply to bring in sales.
零售商將不得不為了提高銷量而大幅降價。
eg. Clothes are the best bargain, with many items marked down.
買衣服是最劃算的，許多衣服都降價了。