Alpha-olefin
[化] α-烯烃
🧩 词语组成解析
alpha
['ælfə]
n. 希腊字母的第一个字母;
n. 石蜡, 烯烃\\n[化] 烯烃
🗣️ 情景例句
How much do stamps cost?
邮票多少钱？
Can you guess what I was doing this morning?
你能猜到今天上午我在做什么吗？
That sounds interesting. That was a hundred years ago, wasn't it?
听起来很有意思。那是一百年前的事了，不是吗？