正文

VOA慢速英语:3D打印枪支引发法律问题

2018-08-04来源:和谐英语

Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin.

Words in This Story

three-dimensional - adj. having or seeming to have length, width, and depth

hesitant - adj. slow to act or speak especially because you are nervous or unsure about what to do

serial number - n. a number that is put on a product and that is used to identify it

undetectable - adj. impossible to discover or notice

firearm - n. a small gun

metal detector - n. a device that can tell if metal is present

absurdity - n. extremely silly, foolish, or unreasonable idea

whim - n. a sudden wish, desire or decision