I couldn't hear you just now.

我刚才听不见你说话了。

The phone just dropped the call.

电话断线了。

重点讲解:

The phone is off line.

The phone just dropped the call.

offline表示“断线”，描述电话时，就是指“电话断掉”的意思，但是老外一般不这么用，他们会用drop the call。drop the call指“电话断线”。当你因电话断 线而和对方失去联系，再次接通时，你就可以说:The phone just dropped the call.