C-4-fraction
[化] 碳四馏分
🧩 词语组成解析
🗣️ 情景例句
I'm sorry I missed him. I had to work late.
很抱歉我错过了他醒着的时候。我必须工作到很晚。
Would you like to leave a message?
你想留下一条消息吗？
There isn't any water in the bottle.
瓶子里一点水也没有。