Nonamethylene
[化] 1,9-亚壬基
🗣️ 情景例句
I see, it's not easy to marry and start a family. So when's the wedding?
我明白，要组织一个家庭并不容易。那么婚礼订在哪天举行？
It's one o'clock sharp.
现在一点整。
Nice to meet you.
很高兴见到你。