Nikasol
醋酸乙烯酯
🗣️ 情景例句
I'm ready. See you later, Marilyn.
我准备好了。Marilyn 再见。
To learn obeying is the fundamental art of governing.
学会顺从是管理的基本艺术。
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。