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
Some think that all's fair in business.
一些人以为商界的一切都是公平的。
She won't be in until 10:45, so the earliest would be 11:00.
她要到10:45才来，所以最早也得到11点才能看。
During the journey, their boat began to sink.
途中，船开始下沉，