Heart valve
心（脏）瓣膜
🏥 医学释义
人工心瓣
🧩 词语组成解析
heart
[hɑrt]
n. 心，心脏;感情;要点;胸部;
vt. 鼓励;激励;
vi. 结心;
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
To apologize for leaving so early,I brought you a little gift.
为了表示我对提早走掉的歉意，我给你带了一件小礼物。
I didn't see Mr. Jones,but I saw John Smith.
我没看见琼斯先生，但是我看见了约翰·史密斯。
If an unfair law existed, - and there were many that had been passed by the British rulers in India and South Africa - it was the duty of everyone to disobey this law, but without using violence.
如果存在一个不公平的法律--而且在印度与南非的英国统治者已经通过了许多这样的法律--那么不遵守这一法律是每个人的责任，但不要使用暴力。