1，My phone is dead. 我手机没电了。
2，My phone is out of battery. 我手机没电了。
3，My phone is lagging. 我手机卡了。
4，My phone is out of credit. 我手机欠费了。
5，I need to top up my phone. 我需要给手机充值了。
6，My phone is out of data. 我手机流量没了。
7， My phone crashed. 我手机死机了。
8，This is a bad connection. 信号不好。
9，My phone is overheating. 手机过热。
10，My phone is out of memory. 手机没内存了。