Ethynyl
n. [化]乙炔基
🗣️ 情景例句
Richard is right.
Richard是对的。
My brother came in,changed his clothes,and went out again.
我的兄弟进来了，换掉了他的衣服，并再去外面了。
'Someone fired a shot through my office window.
“有人向我办公室窗户开了一枪。