UID:308341
UID:64871
UID:34666
UID:309230
UID:305864
UID:98306
UID:290076
光杆司令:搜索一下“為什麼光路圖中光線會跑到鏡子後面”,里面有详细的讲解 (2017-04-20 13:00) oJ^P(] dw