Metanometer
甲烷计
🗣️ 情景例句
Well, a wristwatch,
嗯，一个手腕表，
Each bird likes to hear himself sing.
每一只鸟都爱听自己歌唱。
As long as all was still, the pen drew a straight line,
只要一切都是静止的，笔就会划出一条直线；