Coke residue
[建] 炼焦渣
🧩 词语组成解析
coke
[kok]
n. 焦炭，焦煤;
vt.& vi. 转化或者被转化为焦炭;
🗣️ 情景例句
Thank you, thank you!
谢谢 谢谢
Don't forget to cable to let us know you arrived safely.
不要忘记在你安全地到达后打电报让我们知道。
and maybe that is where the rub is.
问题的症结恐怕就在这里。