13. Don't make an ill use of your credit card.
不要滥用你的信用卡。
还能这样说：
Don't use your credit card willy-nilly.
Remeber not to abuse your credit card.
应用解析：
use one's loaf 动动脑筋；
use sth. up 用尽；
have no use for sb. 无法容忍；
put sth. to good use 从某事物中获益
14. It's quite convenient to use credit cards when shopping.
消费时用信用卡很方便。
还能这样说：
Credit cards are convenient in shopping.
It can bring you much convenience when you go shopping.
谚语：
It is right to put everything in its proper use.
凡事都应该用得其所。
15. I have lost my credit card.
我的信用卡丢了。
还能这样说：
My credit card is missing.
I couldn't find my credit card.
16. You should pay off the overdraft on time.
你应该按时偿还透支费。
还能这样说：
You had better repay te bank overdraft on schedule.
The bank overdraft must be paid on time.
谚语：
A hero is known in the time of misfortune.
时势造英雄。
17. You can apply for a loss register.
你可以申请挂失。
还能这样说：
You can make a loss register.
You may apply for a loss report.
应用解析：
make a loss 亏损；
sell at a loss 亏本出售；
suffer losses 遭受损失；
throw sb. for a loss 使某人陷入绝境；使人沮丧