Colopene
[醫] 松節烴
??? 情景例句
In the Spring and Autumn period, copper and iron chopsticks came into being.
在春秋時代又出現了銅制和鐵制的筷子。
Deeds,not words.
要行動，不要言詞。
I had not laughed since I became deaf.
我耳聾后就從來沒有笑過。