Valnllae tricuspidslis
[医] 三尖瓣, 右房室瓣
🗣️ 情景例句
It's good that you went back.
你回去是对的。
She is supposed to be one of the best singers.
大家认为她是最有名气的歌星。
That's easier said than done!
说来容易做起来难哪！