Dopplerite
n. [地]( 泥炭沼中的) 弹性沥青, 天然沥青
🔁 扩展释义
【化】 矿质橡胶
🗣️ 情景例句
What for?
为什么？
I only regret that I have but one life to give for my country.
我抱憾的是，只有一次生命能献给祖国。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？