我表达的不准确意思是，物业需要做些东西。 在网上查了： #4 Property management Property management firms help real estate owners rent out the units in their buildings. Their jobs include collecting rent, showing units, fixing deficiencies, performing repairs, and managing tenants. They charge a fee, typically a percentage of the rent, to property owners. ---- 所以换水管、敲地板。这些可有可无，扰民的活。 就是物业需要做点东西，才能justify他们的存在。 就跟之前很多职位一样，人们需要做些东西justify他们的存在。而不管做的东西，很ridiculous.