Valvula
n. 瓣, 瓣膜\\n[医] 瓣, 瓣膜
🗣️ 情景例句
It's been a pleasure to talk to you.
和你谈话是件很愉快的事。
I'm gonging to show him how to play bridge.
我正要指点他如何打桥牌。
OK, Mom! said Lucy.
“好的，妈妈！”露西说。