yī / shēng / tōng / guò / jiǎn / chá / dèng / gǔ / de / huó / dòng / qíng / kuàng / lái / pàn / duàn / zhōng / ěr / shì / fǒu / zhèng / cháng

医生通过检查镫骨的活动情况来判断中耳是否正常。

The doctor checks the movement of the stapes to determine whether the middle ear is functioning normally.