Natronbiotite
钠黑云母
🗣️ 情景例句
We need a new coffee-table book,
我们需要一本可以摆在客厅的书，
He that boasts of his own knowledge proclaims ignorance.
夸耀知识实乃无知。
Mr.Sawyer comes home from work.He arrives home late.
索耶先生下班回家。他到家很晚。