点击下方单词,选择对的这个单词
1. 缩微胶卷Microfilm is film that is used for photographing information and storing it in a reduced form.
1. film on which materials are photographed at greatly reduced sizeuseful for storagea magnification system is used to read the material
多通过句子记忆单词,而不是单独死记硬背。