Septavalency
(=septavalence)[化]七价
🗣️ 情景例句
Did you go home?
你回家了吗？
The boss is waiting in his office for us to come and explain why we failed to finish this work on time.
老板在他的办公室里等着我们前去说明未能按期完成这个工作的理由。
Many offices use answering machines to give information.
许多办公室使用留言机来提供信息。