Olefin
n. 石蜡, 烯烃\\n[化] 烯烃
🗣️ 情景例句
I'm so tired, I have to take a nap when I get home.
我太累了，回到家后一定要睡上一会儿。
She always feels comfortable when surrounded by her family.
她被家人围绕时，常感到快慰。
Are you free this Saturday?
你这个星期六有空吗？