Divinylacetylene
[化] 二乙烯基乙炔
🗣️ 情景例句
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
That's a pity.
那真可惜。
What about you? What do you feel like doing?
你看怎么办？你想干什么呢？