Interometer
[光]干涉仪
🗣️ 情景例句
You guys are like three kids.
你们就像三个孩子。
What's the date today?
今天几号？
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。