Seligmannite
硫砷铅铜矿
🗣️ 情景例句
What time is it?
现在是什么时间了？
We know not what is good until we have lost it.
有的时候不爱惜，失了以后空叹息。
Can you remember the doctor's telephone number?
你还得医生的电话号码吗？