Dibenzphenanthrene
二苯并菲
🗣️ 情景例句
Like I said, he'll be with you shortly.
正像我所说 ，他不久就可以与你会面。
This will be the biggest fish ever.
这是前所未见的大鱼吧？
What's the basis of your belief that the product is safe?
你凭什么相信产品是安全的？