Barysilite
硅铅矿
🗣️ 情景例句
let you and I talk about it.
我们就来讨论一下。
This is Shen calling.
我姓沈。
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。