Valva
[医] 瓣, 瓣膜
🗣️ 情景例句
A watch! I've got just the place for watches! Let's go.
手表！我正好知道有家卖表的。走吧！
When three know it, all know it.
三人知，天下晓。
It costs five hundred pounds.
它的售价是500英镑。