Autochthonism
n. 土著, 土生, 土产
🗣️ 情景例句
What's the problem, Richard?
有什么问题吗 Richard
Did you go to the church this morning?
你今早去教堂了吗？
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。