Marthozite
铜硒铜矿
🗣️ 情景例句
He came down with the flu, so he didn't go to work.
他感冒了，所以没去上班。
I worked as an intern in that firm last summer.
去年夏天我在那家商行实习。
Just whose fault is this damage?
这次的损坏究竟是谁的责任呢？