Vernam
灭草猛
🗣️ 情景例句
You look much younger than ... years old.
你看起来比……年轻多啦。
She's not at her desk right now.
这会儿她不在办公室办公。
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。