Nitroanthracene
[化] 硝基蒽
🗣️ 情景例句
How much do I owe you?
我应付你多少钱？
It is our permanent principle that contracts are honored and commercial integrity is maintained.
重合同、守信用是我们的一贯原则。
Mum, I don't feel very well.
妈妈，我感到不舒服。