Acetylene
n. 乙炔, 電石氣\\n[化] 乙炔; 雙亞乙基
?? 牛津釋義
acetylene
n[U]
(chemistry 化) colourless gas that burns with a bright flame, used in cutting and welding metal 乙炔; 電石氣.
??? 情景例句
I see. What time will she come back?
哦，那她幾點會回來？
Do they have children?
他們有孩子嗎？
we quickened our pace and made our way rapidly towards the stream where we hoped the boatman was waiting.
快速地朝深溪邊走去，希望船夫還在那兒等著我們。