microdot
adj.微粒的
难易程度:
microdot为短语/超纲词汇
microdot
/'maɪkrəʊdɒt; `maɪkrodɑt/
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）.
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）.
microdot
n[C]
a secret photograph of something such as a document which is reduced to a very small size so that it can easily be hidden
a secret photograph of something such as a document which is reduced to a very small size so that it can easily be hidden
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