Diketene
双烯酮
🗣️ 情景例句
How is this meat dish prepared?
这道肉菜是怎么做的？
Messengers should neither be headed nor hanged.
两国相争，不斩来使。
We always assume that villagers in remote places are friendly and hospitable.
人们总是以为偏僻的地方的村民们热情好客。