The effect is perhaps not entirely surprising. Talking and singing are both forms of vocal communication.

这种效果也许没什么奇怪的。因为说话和唱歌都是口头交流的形式。

The researchers are not sure if chimpanzee vocal communication is similar to the beginnings of language in human evolutionary history.

研究人员不确定黑猩猩的语音交流是否与人类进化史上语言的开始阶段相似。

A tin pipe ascends through the ceiling, and forms a medium of vocal communication with other parts of the edifice.

一根锡管从天花板上升起，形成了与大厦其他部分进行声音交流的媒介。

The whole personality, with its set limitation to vocal communication, will find satisfaction and success in a field or fields where the latent desire for communication can find outlet.

整个人格，由于其对声音交流的既定限制，将在一个或多个领域中找到满足和成功，在这些领域中，潜在的沟通欲望可以找到出口。

Meowing is not actually a natural behaviour for cats, out in the wild they wouldn't be communicating with one another through vocal communication, and it's the same for feral colonies.

喵喵叫其实不是猫自然的行为，在野外它们并不会用声音来沟通，野外的聚居地也是一样。