5. Delivery service is available for a slight extra charge.
多付一點費用就有送貨到家的服務。
還能這樣說：
We can provide delivery service if you pay a little extra money.
Pay more money and you can get delivery service.
應用解析：
passenger extra 臨時旅客列車（臨客）；
postage extra 郵費另算；
extra-heavy 特重的，超重的，超功率的；
charge extra 額外附加費用
6. We will provide a door-step delivery service.
我們會推出送貨上門的服務。
還能這樣說：
We will offer home delivery service.
We will service you with door-step delivery service.
應用解析：
from door to door 從一家門口到另一家門口；
the door to sth. 獲得或達到某事物的門路或途徑；
lay sth. at sb.'s door 歸咎于某人；
next door to 幾乎，差不多
7. The store is more than happy to deliver the goods to your home.
本商店很樂意為您送貨上門。
還能這樣說：
The store is very glad to deliver the goods to your place.
It's our pleasure to send the goods to your front door.
應用解析：
more than happy to do sth. 非常樂意做某事；
strike the happy mean 采取中庸之道；
be happy together （夫婦）和睦相處；
be happy in （幸好）有……
8. May I have your name, address, and telephone number on this slip?
請您將您的姓名、住址和電話留在這張紙上。
還能這樣說：
Could you please give me your name, address and telephone number on the paper?
Can you write down your name, address and telephone number on the paper?
應用解析：
slip還可以作動詞，意為：滑動；遺忘；擺脫，掙脫。