Emplectite
硫铜铋矿
🗣️ 情景例句
Nowadays many TV programs need parental guidance.
现在许多电视节目需要在家长指导下观看。
She finally began to get angry when Paul didn't arrive.
当保罗没有到达时，她终于开始生气了。
Education is one of the key words of our time.
教育是我们这个时代的关键词之一。