一早去左補phy~嘩..見到fransh個頭...好型..之後就開始上堂...其實都唔係好悶..physic都幾好玩..今堂..唔知點解好中意上..之後..放lunch同kennie,so,fransh,肥佬,partick,軒去食野~廿幾蚊學生餐..真係好..食完個個都唔想返去=0="之後..返到去繼續..而家開始....中意phy..哈..

等我寫番d筆記先..

propoties of wave

reflection,refraction,diffraction,interference