那个房东是个黑心房东，任由老鼠在破旧的公寓里乱窜。

The ___slumlord ignored the rats running around in the dilapidated apartment.

那个房东从不修理漏水的屋顶，却收取高昂租金，真是个无良的贫民窟房东。

The landlord never fixes the leaking roof but charges high rent - everyone knows he's a ___slumlord.