Acetylenedivinyl
[化] 乙炔基丁间二烯; 3,5-己二烯-1-炔
🗣️ 情景例句
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4个青少年中就有1位曾经吸过大麻？
Excuse me for being late.
对不起我迟到了。
But my sister bought this pair last month.
但是，我姐姐上个月买到了这样的一双。