Bridgehead nitrogen
[化] 桥头氮
🧩 词语组成解析
n. 桥头堡
🗣️ 情景例句
What do you do for a living?
你是做什么的？
How much does it cost to rent a mid-size car?
租一辆中型汽车要多少钱？
The bottle is empty.
瓶子是空的。