Nitrobarite
[化] 钡硝石
🗣️ 情景例句
They'll be at your door within a few minutes.
他们会尽快送到你的门口。
This dress is made of silk,isn't it?
这件衣服用丝绸做的，是吗？
He led me into his room and hurriedly hid a large parcel under his desk.
他把我领进屋，慌忙把一个大包藏到了桌子下面。