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文字稿:
A fully functional gun made with a 3D printer.
The controversial group who designed the firearm want to makeit available online.
Anti-gun campaigners have criticised the project; while law enforcement agencies are monitoring developments.
3D printing has been hailed as the future of manufacturing, and works by building up layer upon layer of material to make solid objects.
Vocabulary 詞匯:
fully functional 完全可以使用的
firearm 手槍
anti-gun campaigners 參加反對槍支運動者
law enforcement agencies 執法機構
hailed as 被稱為
