Pentaborane
n. [化]戊硼烷(用作火箭推进剂)
🗣️ 情景例句
Let's get together and have a group study session.
咱们在一起组织一个学习小组吧。
To answer the first part of your question, I'd like to say that our studies were very extensive.
你问题的第一部分，我要说的就是我们的研究非常广泛。
Yes, but what are in the boxes?
哦，那箱子里是什么呢？