The received signal of the mobile phone is very weak,and the voice is noisy.
说明:信号好坏那是中国人的讲法,外国人讲起来就是信号强弱(strong,weak)
the cellphone (mobile phone) reception was bad
the phone call had lots of noise dure to bad reception
The signal is not very good, I can't hear clealy.
the voice is not clear.