International Race Of Champions国际比赛的冠军 Integrated Repair Operations Center (Sprint)综合行动中心(冲刺) Intrusion-Resistant Optical CableIntrusion-Resistant光缆 Instantaneous Rate of Change瞬时速度的变化 Independent Rental Owners Committee独立的租金业主委员会 Iraq Reconstruction Operations Center伊拉克重建的营运中心 Independent Rental Owners Council业主委员会独立的租金 Idiot Right Out of College傻瓜从大学毕业 It's Really Only Chevrolet它是真的只有雪佛兰 I Race Other Cars我赛跑其他车辆 Integrated Robustness On Chip在芯片集成系统的鲁棒性 I'm Really Only A Camaro我真的只有一个Camaro I Run Off Course我跑了 I Run Off Cliffs我跑了悬崖 I Run Over Critters我跑过的怪物