yī / shēng / fā / xiàn / tā / de / dǎn / guǎn / yǒu / xiē / dǔ / sè / xū / yào / jìn / yí / bù / jiǎn / chá

医生发现他的胆管有些堵塞，需要进一步检查。

The doctor found that his bile duct was somewhat blocked and that further examination was needed.