劍橋詞典a deformity in which the chest is narrow and sticks out more than usual at the front 雞胸 Severe cases of pectus carinatum can usually be corrected by surgery . 嚴(yán)重雞胸可以通過(guò)手術(shù)矯正。 也見(jiàn)pigeon-chested 返回 pectus carinatum