money pit

US /ˈmʌn.i pɪt/
UK /ˈmʌn.i pɪt/
"money pit" picture
1.

无底洞, 烧钱货

something that costs a lot of money to operate or maintain

:
That old car has become a real money pit.
那辆旧车已经成了个真正的无底洞
Buying that huge house was a mistake; it's been a money pit ever since.
买那栋大房子是个错误;从那时起它就一直是个无底洞