What's more, when people are in danger and there is no mobile phone signal, they can use Beidou to send a 1200-word message to ask for help.

更重要的是，当人们处于危险之中而手机又没有信号时，他们可以使用北斗发送一条1200字的信息寻求帮助。

youdao

Humor: no mobile phone day, I'm not accustomed to.

心情：没有手机的一天，还真有点不习惯。

youdao

We couldn't image what our life will be if there is no mobile phone.

很难想象没有手机我们的生活会变成怎样。

youdao

"Phone boxes are vital in the countryside, especially in areas where there is no mobile phone coverage, " said Mr Edwards.

BBC: Phone box that's a home from home

Yet no mobile phone for the U.S. market approaches the kind of phone as wallet functionality they have for many years in Japan.

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Although the electricity supply on the island is switched off between midnight and 0600, and there is no mobile phone reception, Canna does have broadband.

BBC: Canna islanders appeal for new family