Ethyl acetylene
[化] 乙基乙炔; 1-丁炔
?? 詞語組成解析
[化] 乙基\\n[醫] 乙基
n. 乙炔, 電石氣\\n[化] 乙炔; 雙亞乙基
??? 情景例句
Come on, you can do that.
振作起來，你一定行。
I tried to call Mr. Cooper,but the line was busy.
我試著呼叫庫珀先生，但是線老是忙。
It is said that a new policy is being put into practice in your foreign trade.
據說你們正在實施一種新的對外貿易政策。