Dialkene
二烯烃
🗣️ 情景例句
I prepared lamb chops,
我准备了羊肉，
Do you have any comments to make on the recent developments.
你对最近事态的发展有什么评论吗？
She was a lively young woman with patience and imagination.
她是一个活泼的女子，具有耐心和想象力。