Septavalency
(=septavalence)[化]七价
🗣️ 情景例句
Good afternoon, Mrs. Green. I'd like you to meet my girlfriend, Sally.
格林太太，下午好。我想让你认识一下我的女朋友萨里。
I met one of the newscasters over at the television station.
我在电视公司遇到一位新闻播音员。
May I ask some questions?
我可以问几个问题吗？