Paradow
对二氯苯
🗣️ 情景例句
I've heard so much about you.
我知道很多关于你的事儿。
I hope you can pass the examinations.
我希望你的考试能通过。
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。