tiějiàng / xiān / qīnglǐ / lúkēng / lǐ / de / huījìn / zài / jiǎnchá / tōngfēngkǒu / shìfǒu / dǔsè

铁匠先清理炉坑里的灰烬，再检查通风口是否堵塞。

The blacksmith first cleared the ashes from the furnace pit and then checked whether the air vent was blocked.