介紹：

Cost-effective adj. 性價比高的，合算的
It’s not cost-effective to get a used car with $200,000.
20萬美金買輛二手車，真不劃算。

Be worth the money 劃算
It's worth the money to get an apartment for $10,000 in downtown LA.
十萬美金在洛杉磯市中心買個公寓，很劃算啊。

Get money's worth 錢花得值
Admission to Disney is so expensive that I feel like I have to stay all day just to get my money's worth.
去迪士尼的門票如此貴，以至于我感覺我需要待一整天才能讓我的錢花得值。

Have money to burn 揮霍
He’s a high-earning lawyer and has money to burn.
他是個收入很高的律師，有錢去揮霍。

You pays your money and you takes your chances.
你就碰碰運氣吧。
Customer: Can you guarantee that this microwave won't break?
顧客：你能保證這臺微波爐不會壞嗎？
Salesman: No guarantees. You pays your money and you takes your chances.
銷售：沒法保證。碰碰運氣吧。