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
Look, simply shape up, or ship out!
看，只有表现好些才可留下来。
He is a good friend that speaks well of us behind our backs.
背后说人好话的够朋友。
I will speak against anything I know to be wrong.
我会对所有我认为不对的事情直言不讳。