Dichlorobutane
二氯丁烷
🗣️ 情景例句
Just relax and enjoy it.
放轻一点 好好地享受它。
Which one is more difficult?
哪一个是比较难的？
My old friend, Harrison, had lived in the Mediterranean for many years before he returned to England.
我的老朋友哈里森在回到英国以前曾多年居住在地中海地区。