Lengebachite
[机] 叶硫砷银铅矿
🗣️ 情景例句
When you understand the cultural background, you can better use the language.
当你了解了文化背景，你就能更好地运用语言。
All our work was in vain.
我们白干了一场。
I see, we'll take another look at your specifications.
哦，我们会再查一直你们的规格说明书。