Diolefin
n. [化]二烯
🗣️ 情景例句
And the telephone number is five five five…three oh nine oh. Thank you.
电话是555-3090。谢谢。
I learned English this morning.
我今天早上学英文。
My name is Han Meimei. What's your name?
我叫韩梅梅，您呢？