Paramelaconite
锥黑铜矿
🗣️ 情景例句
is no longer in service.
是空号。
Who cares?
谁管那么多？
Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。