CAT and hyperuricemia: In combination with UOX and CAT, the dual‐enzymes@ZIF‐8 nanoparticles bound to the RBC surface could effectively degrade UA in blood via initiating a UOX‐CAT cascaded catalytic reaction augmented/enhanced by the hyperoxia microenvironment of RBCs, thus resulting in fast‐acting and long‐lasting treatment of hyperuricemia.