It's really a good bargain. 真劃算啊。

A:Can I help you?
有什么需要幫忙的嗎？
B:Yes,I want to buy a necklace as my wife's birthday gift?
是的，我想買一條項鏈作為妻子的生日禮物。
A:How about this one?
這個怎么樣？
B:It looks great.How much is it?
太美了，多少錢？
A:5000yuan.Do you have a membership card?
5000元，請問你有會員卡嗎？
B:No,I don't.
我沒有。
A:Why not apply for one?If you apply for a membership card at 40 yuan per year,you can save at least 2000 yuan.
為什么不申請呢？如果您每年花40元辦理一張會員卡，你至少可以省下2000元。
B:Why do you say so?
為什么這么說呢？
A:Because you can get 10% off with a membership card.
因為如果您有會員卡可以給您打九折。
B:Do you mean that I can only pay 4500 yuan if I buy this one?
你的意思是如果我買這個只需要4500元？
A:Yes,you're right.
對啊。
B:It's really a good bargain.I will take this one and apply for a membership card.
真劃算啊，我買這個了，并且辦理一張會員卡。