Hexadiene
[机] 己二烯
🗣️ 情景例句
Excuse me, Mr. Li. Do you have children, Mr. Li?
打搅了，李先生。您有孩子吗？
Till we meet again.
后会有期。
He was the man who climbed the Leaning Tower of Pisa and dropped various weights from the top,
他就是那个曾经爬上比萨斜塔，从塔顶向下抛掷各种重物的人；