Valnllae vasorum
[医] 血管瓣
🗣️ 情景例句
Do you want to get together and study sometime?
你想和我一起学习吗？
Let every man speak well of the bridge theat carries him over.
饮水思源。
He has made neat paths and has built a wooden bridge over a pool.
他修筑了一条条整洁的小路，并在一个池塘上架了一座小木桥。