Left atrioventricular valve
左心房室瓣，左房室瓣，二尖瓣
🧩 词语组成解析
left
[lɛft]
adj. 左边的，左侧的;左派的;
n. 左，左面;[军]左翼;左派，激进分子;
adv. 向左;在左边;
v. 离开( leave的过去式和过去分词);
a. 房室的\\n[医] 房室的
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
And how old are you?
你几岁了？
The young man had been well aware of her presence at the party.
那个年轻人早已注意到她在宴会上。
You can see shapes on the rock. Do you see that bit?
“你可以看见岩石上的形状。你看见那一小块了没有？