Bbh
[医][=benzene hexachloride]六六六，六氯化苯
🗣️ 情景例句
How many days will it take for my mail to reach its destination?
我的信件到达目的地要用几天？
Could you give me an indication of the price?
您能提供一个参考价吗？
Can you tell me why our bid was not accepted?
请告诉我为什么我们没有得标好吗？