Petterdite
砷铅矿
🗣️ 情景例句
Something that might be surprising to you.
一件也许会让你吃惊的事。
I never used to oversleep.
我过去从未睡过头。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。