Methanometer
甲烷计; 沼气检定器
🗣️ 情景例句
Would you mind not doing it?
你能不能别那么做？
Is it big or small, daddy?
爸爸，它是大的还是小的？
That's very kind of you, but I want to speak to him about my son, Jim Green.
你真好，谢谢您。不过我想和校长谈谈我儿子吉姆·格林的事情。