Ethylene
n. 乙烯\\n[化] 乙烯; 1,2-亚乙基
🗣️ 情景例句
Work harder and practice more.
要更加努力地学习，更加勤奋地操练。
The sun sets.
太阳西沉了。
When I boarded the train, I could not help noticing that a great many local people got on as well.
上车后，我不禁注意到许多当地人也上了车。