Valvulae miralis
[医] 二尖瓣
🧩 词语组成解析
[医] 瓣, 瓣膜
🗣️ 情景例句
Thanks for the haircut, keep the change.
谢谢你给我剪头，不用找了。
To run a race
竞争
One morning the tiger was very, very hungry.
一天早上老虎饿极了。