Cepa
[化] 耦合电子对近似
🗣️ 情景例句
English is important for those who wish to do international trade.
英语对于那些想做国际贸易的人来说太重要了。
My coat is yellow.
我的外套是黄色的。
Nothing could have been more annoying.
没有什么能比这更烦人了。