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当今,好多人都用手机,可手机有许多不足之处。比如,它的电波辐(fu)射对人体有害。在噪(zao)音多的场合听不清楚,声音大不保密等等。
Today, many people use cell phones, cell phones can have many shortcomings. For example, its radio waves are harmful to the human body. In the noise (zao) tone more occasions do not hear, the sound is not secure and so on.