zhè / bǎ / jiù / qiāng / de / qiāng / gǎn / yǐ / jīng / shēng / xiù / xū / yào / jí / shí / wéi / xiū

这把旧枪的枪杆已经生锈，需要及时维修。

The barrel of this old gun has rusted and needs to be repaired promptly.