Uop
n. 美国环球石油产品公司
🗣️ 情景例句
It's not finished yet.
现在还没有完成。
He is a good friend that speaks well of us behind our backs.
背后说人好话的够朋友。
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。