Liquid nitrogen
[化] 液氮
🧩 词语组成解析
🗣️ 情景例句
I have some questions to ask.
我有一些问题要问。
What's the shape of your balloon?
你的气球是什么形状？
On her way home she bought a new pen at a shop.
回家路上，她在一家商店买了一支新钢笔。