Polyborane
聚硼烷
🗣️ 情景例句
That's what it is.
的确是如此。
Does John have a yellow pencil?
约翰有一支黄铅笔吗？
Look at Mr Thin. He was poor. He didn't have much money.
瞧瘦先生。他很穷。他没有很多钱。