Clausthalite
[化] 硒铅矿
🗣️ 情景例句
Eleven o'clock, approve the sketches for the toy spaceship.
十一点钟， 批示玩具太空船的草图。
I haven't seen you for a long time.
好久没有见到你了。
The truth is that when mistakes occur, they are more likely to be ours than theirs.
事实上，差错很可能是我们自己，而不是铁路当局的。