wéi xiū / rén yuán / bǎ / jiù / tiě mén / huàn chéng / lǚ hé jīn / mén / fáng jiān / kàn qǐ lái / gèng / míng liàng

维修人员把旧铁门换成铝合金门，房间看起来更明亮。

The maintenance workers replaced the old iron door with an aluminum alloy door, making the room look brighter.