柯林斯詞典diffract /d??fr?kt/ 1. V to undergo or cause to undergo diffraction (使)衍射 to diffract light the light diffracts at a slit 返回 diffract劍橋詞典to break up light or sound waves by making them go through a narrow space or across an edge 衍射（光線、聲波等因阻礙而發(fā)生的擴(kuò)散性傳播） 返回 diffract