Pentaborane
n. [化]戊硼烷(用作火箭推进剂)
🗣️ 情景例句
I'm sorry, I spoke out of turn.
对不起，我说错话了。
There is a skeleton in every house.
每座房子都有骨架。
My old friend, Frank Halliday, is just such a person.
我的老朋友弗兰克。哈利戴正是这样一个人。