Acetylene
n. 乙炔, 电石气\\n[化] 乙炔; 双亚乙基
📖 牛津释义
acetylene
n[U]
(chemistry 化) colourless gas that burns with a bright flame, used in cutting and welding metal 乙炔; 电石气.
🗣️ 情景例句
He seems to be getting on very well at school.
他在学校似乎过得很好。
Too much water drowned the miller.
过犹不及。
Yes. There are two.
是的，有两个。