ptosis /'tәusis/ 📖 中文释义 n. 上睑下垂症[医] 下垂, 上睑下垂 🔗 释义中的汉语词下垂 📘 English Definition(英文释义) n. drooping of the upper eyelid caused by muscle paralysis and weakness ← ptosed P 字母词表 ptosis adiposa →