Ring ulcer
[医] 环形角膜溃疡
🧩 词语组成解析
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
The price. Isn't it possible to give us even a little more discount?
价格问题。难道不能多打点折扣吗？
Li Ming's parents are in favor of his plan.
李明的父母都支持他的计划。
of a change of atmosphere, of a diversion of effort, is essential.
改变一下气氛，转移一下注意力，这是不可缺少的。