单词	给世界的信
释义	给世界的信LETTER TO THE WORLD
随便看	relative reactivity relative record number relative recursiveness relative reducing value relative reduction relative redundancy relative reference relative refractive index relative refractory period relative refractory phase relative regulation relative reliability diagram relative relief relative relief method relative reractory period relative resistance relative resistance variations relative resolution product relative resonance relative resonance integral relative resonance--integral relative response relative response factor relative response value relative responsivity