Debituminization
[化] 脱沥青; 脱沥青作用
🗣️ 情景例句
That's another surprise.
这是另一个惊喜。
Merry Christmas!
圣诞快乐！
It is hard for us to realize nowadays how difficult it was for the pioneers.
我们今天很难想像昔日的登山先驱们是多么艰苦。