Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
Can I count on your help?
我能仰仗你的协助吗？
Joe felt the lecture wasn't very interesting.
乔感觉演讲一点也不精彩。
I assure you that you will feel no pain at all.
我保证你根本不会觉得疼的。