Evenometer
光电式均匀度测定仪
🗣️ 情景例句
Michigan has a fine School of Journalism. Michigan
大学有一个很好的新闻学院。
While there is life, there is hope.
留着青山在，不怕没柴烧。
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。