Insufficiency of valves
[医] 心瓣闭锁不全
🧩 词语组成解析
n. 不充分, 不足, 不适当\\n[医] 机能不全, 闭锁不全, 关闭不全
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
I owe you a good steak dinner.
我欠你一顿牛排晚餐。
What now?
现在要怎样？
What is called 'modern civilization' is not the result of a balanced development of all man's nature.
所谓“现代文明”并不是人的天性平衡发展的结果，