Polyborane
聚硼烷
🗣️ 情景例句
Breathing this air is killing me.
呼吸这样的空气真是致命。
We kept on discussing the problem for four hours.
我们持续讨论那个问题达四小时。
Yes, I remember. You were not here yesterday. What was wrong? Were you ill?
是的，我记得。你昨天没有来。怎么啦？你病了吗？