Ethynation
乙炔化
🗣️ 情景例句
There's nothing more joyous than the arrival of a new baby.
没有任何事能比新生儿的到来更令人喜悦的了。
If there were no clouds, we should not enjoy the sun.
吃得苦中苦，方知甜中甜。
It's er … oh, I can't find it!
票，嗯……啊，找不到了！