试题题干
By saying language is （ ） we mean we can't give a sound reason why such a form is pronounced in this way rather than in that way, and why a particular meaning should be indicated by this form rather than by that form.
参考答案
正确答案：
试题解析
当我们说语言是任意的，是指我们不能合理地解释为什么这个音以这种形式而不是以那种形式发音。并且为什么以这种形式而不是以那种形式来表明某种特殊的意义。