Methanometer
甲烷计; 沼气检定器
🗣️ 情景例句
Oh! Hi, Grandpa. Yes, of course, I am, but my mind isn't.
噢， 嗨， 爷爷。是的， 当然， 我准备好了， 但是有点心事。
A swine over fat is the cause of his own bane.
猪死都因身过肥；象以齿焚。
What's your trouble?
你哪儿不舒服？