When you can't get a 4g connection, the fallback is to use Sprint's 3g network, which is based on EV-DO (Evolution Data Optimized) technology.

当你连接不上4G网络的时候，你所能依赖的就是Sprint的基于EV - DO(演变数据优化)3g网络了。

youdao

When you can't get a 4g connection, the fallback is to use Sprint's 3g network, which is based on EV-DO (Evolution Data Optimized) technology.

当你连接不上4G网络的时候，你所能依赖的就是Sprint的基于EV - DO(演变数据优化)3g网络了。

youdao