C-4-fraction
[化] 碳四馏分
🧩 词语组成解析
🗣️ 情景例句
You did a good job.
你做得真棒！
You can't count on Tom being punctual.
你不要指望汤姆会守时。
I said that together we could light a fire that could be seen for many miles.
我说，我们一起点燃一堆火，让几英里远都能看见。