现在的手机固然有通信方便快捷等优点,但常常会丢失或被盗;有时使用者会担心通话内容被别人听见,或在公关场合不得不关机,或在游泳时必须将它放在其他地方。为了克服手机的这些缺陷,英国伦敦皇家美术学院的两名硕士生最近发明了一种他们称之为“电话牙”的可以装在 Today’s mobile phones have the advantage of convenient and quick communication, but they are often lost or stolen. Sometimes users are worried that the content of the call will be heard by others, or they have to be shut down during public relations, or they must be placed in other places while swimming. In order to overcome these shortcomings of cell phones, two master students from the Royal Academy of Fine Arts in London, UK, recently invented what they call “phone teeth” that can be