Diffractogram
衍射图(样)
🗣️ 情景例句
I heard that some tours actually go down into the canyon. Is that true?
我听说有的旅游团真正下到峡谷里去了。那是真的吗？
If I have time tomorrow,I think I'll get a haircut.
如果我明天有时间，我认为我应该理发。
Have you got a penfriend?
你有笔友吗？