Penlight
n. 钢笔形小手电筒
🗣️ 情景例句
So do I.
我也喜欢。
You're dreaming.
你做梦！
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。