试题题干
is the most unstable element of a language as it is
undergoing constant changes both in form and content.
参考答案
试题解析
词的形式和内容总是处于变化之中，是语言中最不稳定的因素。不过相比之下，词的内容比形式更不稳定。
is the most unstable element of a language as it is
undergoing constant changes both in form and content.
词的形式和内容总是处于变化之中，是语言中最不稳定的因素。不过相比之下，词的内容比形式更不稳定。