Upper retina
[医] 上半[部]视网膜
🧩 词语组成解析
upper
['ʌpə]
adj. 地位较高的;上面的;内地的;地表层的;
n. 鞋帮，靴面;兴奋剂;令人兴奋的经历;
n. 视网膜\\n[医] 视网膜
🗣️ 情景例句
Robbie, would you bring the dessert plates.
Robbie，你把甜点盘子拿来好吗？
Old oxen have stiff horns.
牛老角硬。
It's much cheaper to camp than to stay in a hotel.
露营比住旅馆要便宜多了。