Cpmet
[化] 耦合电子对多电子理论
🗣️ 情景例句
Have you ever been to Nanjing?
你曾去过南京吗？
Don't forget to write your return address on the letter.
不要忘记在信封上写你的回邮地址。
He's a terrible man when he's angry.
他生气的时候很可怕。