Pentanitrocellulose
五硝基纤维素
🗣️ 情景例句
I don't buy it.
我可不买你的账。
Let me think it over,and I'll let you know later.
让我考虑一下，回头再告诉你吧。
The Moon is likely to become the industrial hub of the Solar System,
月球很可能成为太阳系的工业中心。