Nov.6th

There is no signal
这里信号不好

12'

signal / 'sɪɡn ə l /
a sound or action that you make in order to give information to someone or tell them to do something 信号；暗号

4'

eg：
There's no signal here，I will call you later
这里没有信号，我一会给你带电话

10'