Pentanitrocellulose
五硝基纤维素
🗣️ 情景例句
Well, I think I'm going to go get us all some vegetables.
好啦 我想我去给大家盛点蔬菜来。
A maiden with many wooers often chooses the worst.
少女有了许多求婚者往往选中了最差的一个。
The ideal to be aimed at was to devise an instrument that could record with a pen on paper,
当地震发生时，它能用笔在纸上记录下