Demethanation
[化] 脱甲烷; 脱甲烷作用
🗣️ 情景例句
Yes?
什么？
The class made noticeable improvement.
这班有明显的进步。
The situation seemed hopeless and he knew his life was in danger.
这种情况看来是毫无希望了，他知道他有生命危险。