Diethylene
n. 二亚乙基
🗣️ 情景例句
I know, Grandpa.
我知道 ，爷爷。
Happy is he who knows his follies in his youth.
记得青年时所做的愚笨事的人是幸福的。
The Crystal Palace was different from all other buildings in the world, for it was made of iron and glass.
这座水晶宫不同于世界上所有的其他建筑，因为它是用钢和玻璃建成的。