Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
But you had to be good at math.
但是你数学一定很好。
No one can disgrace us but ourselves.
除非羞耻自由取，他人岂能辱吾？。
I don't want to make another film for a long time.
我早就不想再拍片子了。