Clavis
[医] 牙钥(拔牙器)
🗣️ 情景例句
You do. You do. There's a book here.
当然 ，当然。书要出版。
In for a penny,in for a pound.
做事一开头，就要做到底；一不做，二不休。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。