as a perk 的近义词 11 个

• chargeless
• comp
• costless
• courtesy
• donated
• free lunch
• free of charge
• gratis
• gratuitous
• honorary
• on the house

as a perk 的反义词 9 个

• blaming
• censuring
• critical
• denouncing
• disparaging
• for sale
• insulting
• reproachful
• unflattering