報廢 announce invalidated check in paper; be declared worthless; discard as useless; dumping; scrap; report as unserviceable [useless]: 這架機器太舊, 快報廢了。 this machine is so old that it will soon have to be scrapped.◇報廢尺寸界線 condemning limit; 報廢等值線 abandonment contour; abandonment; 報廢巷道 [礦物學(xué)] abandoned workings; 報廢件 discard; 報廢零件 faulty part; scrapped parts