Pentaborane
n. [化]戊硼烷(用作火箭推进剂)
🗣️ 情景例句
We don't get to see enough of each other.
我们在一起的时间太少了。
It's an incredible story to them.
对他们来说，那是无法相信的传闻。
Hey, Jim! Can I borrow your ruler?
吉姆， 我能借用一下你的尺子吧！