下面的这个句子对吗?要不要把mobile phones 改成mobile phone?

下面的这个句子对吗?要不要把mobile phones 改成mobile phone? Copy phone,Cheap phones for Kintech - Chinese mobile phone S Mobile phone people began to use mobile phones(phone) from then on. Some mobile phones can m___5,000 phone numbers mobile phone 的音标是什么? mobile phones are（mobile phone is） accepted by more and more more and more people began to use mobile phones(mobile phone 英语翻译My Mobile Phone\x05Now mobile phones are becoming more a 英语作文：Mobile Phones mobile phone为什么叫mobile phone bring mobile phones on campus / bring mobile phones to campu