VOA慢速英语:研究人员通过研究蜘蛛丝来制造新材料

tweezer – n. a small tool that is made of two narrow pieces of metal which are joined at one end and that is used to hold, move, or pull very small objects

boggle – v. to make (the mind) unable to think clearly : to amaze or overwhelm (the mind)

species –n. a group of animals or plants that are similar and can reproduce

synthetic – adj. made by combining different substances : not natural

repetitive – adj. happening again and again : repeated many times

dangle –v. to hang down loosely in a way that makes it possible to swing freely