Ethylenes
乙烯属烃
🗣️ 情景例句
That's alright. You're a lot of help.
没关系。你帮了很大的忙。
To run after the gentleman
追求绅士
I'm afraid that he'll forget it if he misses so many lessons. He may even fail his Chinese exam.
如果他再缺这么多课，恐怕他会忘记很多的。他的汉语考试甚至会不及格。