upchargeWiktionary 原文英美构词拆解upup-前缀chargecharge词干up-Used to indicate increase. · Used to indicate higher position or direction, literally or figuratively.词源说明From up- + charge.释义名词noun1A surcharge for something additional, especially an upgrade (optional amenity).动词verb1To charge extra or to overcharge (charge someone a surcharge, or charge too much).2To overcharge