It can be used for two- way communication, such as between a ship and land.

VOA: special.2010.01.31

So in this case, the communication worked but am I right in thinking that the communication isn't such an instant solution as it was in the game we saw last time?

在这个博弈中,交流起到了作用,但是能说这和上一讲的博弈一样吗,交流并没能直接给出解决的方案

耶鲁公开课 - 博弈论课程节选

Once we've made some generalizations about language in this narrow sense, we could then ask, and we will ask, to what extent do other systems such as animal communication systems relate to this narrower definition.

一旦我们在狭义上,得出了某些关于语言的概论,那我们就可以发问,诸如动物交流系统之类的其他系统,会在多大程度上,符合这个狭隘的定义呢

耶鲁公开课 - 心理学导论课程节选