Metanometer
甲烷计
🗣️ 情景例句
Not much.
马马虎虎吧。
Hope often deludes the foolish man.
希望常欺愚笨汉。
I've got a problem and as I don't know what to do I thought I'd write to you and ask for your advice.
我有一个问题，因为我不知道该怎么办。我想我最好写信给你，征求你的意见。