communicate可数吗

　　There was a tremendous lack of communication between us.

　　我们之间极其缺乏沟通。

　　Negotiators say they're keeping communication lines open.

　　谈判代表声称他们保持着沟通管道的通畅。

　　Lithuania hasn't had any direct communication with Moscow.

　　立陶宛与莫斯科还没有任何直接的交流。