Diacetylene
联乙炔, 丁二炔
🗣️ 情景例句
In these modern times, almose anything is possible, nothing seems to be beyond the reach of science.
在这个现代社会里，几乎所有的事情都有可能会发生，似乎没有任何事情是科学解决不了的。
I'm afraid he will lose your time.
我怕他会浪费你的时间。
We can't agree with the alterations and amendments to the contract.
我们无法同意对合同工的变动和修改。