Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
You won't forget, will you?
不会忘记吧？
I will try, but no promises.
我会试试看，但是不敢保证。
He was caught, put in chains, and sent to America as a slave.
他被抓住了，带上镣铐，送到美国当奴隶。