Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
If you want a job in journalism, you'll need to undertake media studies.
如果你想在新闻界工作，你得学习媒体知识。
What's burning on the stove?
炉子上炖的是什么？
She was in the city to visit her daughter.
她住在农村。