Pentachlorization
五氯化作用
🗣️ 情景例句
Hello. My name is Ellen Stewart,
你们好 ，我叫Ellen Stewart
The product gives you an edge over your competitors,I guess.
我认为你们的产品可以使你们胜过竞争对手。
However, they have decided to use the post office.
然而她们还是决定利用邮局。