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
Something simple--but a good one.
要简单的，但要精美 。
As soon as I get to Guangzhou, I'll drop you a line.
我一到达广州，就给你写信。
We had better go back to the station now,Ken.
肯，我们现在最好回车站去。