Valvulae venarum
[医] 静脉瓣
🧩 词语组成解析
[医] 瓣, 瓣膜
🗣️ 情景例句
You shouldn't have.
不该这样破费的。
I wish to express my gratitude to you for your cooperation.
我要对你的合作表达感激之意。
She started to run to the boat.
她拔腿就往小船跑去。