Microdensitometry
微密度测定
🗣️ 情景例句
I think the kids'll love it.
我觉得孩子们会喜欢。
How many sisters and brothers do you have?
你有几个姊妹和兄弟？
In fact, I was a bit frightened and didn't know what we should do.
事实上我有点害怕，不知道我们该怎么办。