Valvula
n. 瓣, 瓣膜\\n[医] 瓣, 瓣膜
🗣️ 情景例句
We'll call in a couple of days.
我们两三天后打电话。
My parents speak English perfectly.
我的父母能流利地说英语。
Only by working hard can we succeed in doing everything.
只有努力，才能成功