Ethynylbenzene
[化] 乙炔基苯
??? 情景例句
Yes, I took part in.
有，我參加了。
It isn't much.
那是微不足道的。
There's a zoo in the park. We can go and have a look at the animals.
公園里有個(gè)動(dòng)物園哩。我們可以去看看動(dòng)物。