Borobutane
丁硼烷
🗣️ 情景例句
There was too much work for our computer to cope with.
我们的计算机要做的工作太多，简直应接不暇。
How much does that typewriter weigh?
那台打字机重多少？
That's why I've come to see you.
这就是我来见您的原因。