of a language is more noticeable than that in other systems of the grammar.（请在横线上填完整单词，此处空白处单词开头字母为“v”）In general, linguistic change in the sound system and the vocabulary of a language is more noticeable than that in other systems of the grammar. 一般说来，语言在语音系统和词汇方面的变化比起语法的其他系统更容易让人察觉。
