Ethinylation
乙炔化
🗣️ 情景例句
When I watch sad movies I get really depressed.
当我看悲伤的电影时，我常常很难过。
Friendship is love with understanding.
友谊是爱加上谅解。
One afternoon she set out from the coast in a small boat and was caught in a storm.
一天下午，她乘小船从海岸出发，遇上了风暴。