Microdot
a. 微粒的\\nn. 微粒照片, 小粒迷幻药
📖 牛津释义
microdot
n
photograph, usu of secret documents, etc, reduced to the size of a dot 微粒照片（缩小至颗粒大小的照片, 通常为密件）.
🗣️ 情景例句
And in this family.
也在这个家 。
It's easy for me!
这简单！
I am not sure such data does exist.
我不确定是否有这样的资料存在。