yī / shēng / tōng / guò / X / guāng / piàn / fā / xiàn / tā / de / zhǎng / gǔ / yǒu / qīng / wēi / liè / wén医生通过X光片发现他的掌骨有轻微裂纹。The doctor found a slight crack in his metacarpal bone on the X-ray.