关于英语语法与翻译的一点问题...
两个句子,帮分析下语法及翻译.:
A: the difference between "learned" and "popular" words is of great important to a right
understanding of language.
B: you interrupt the vary mental processes needed to make your efforts most productive
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A句中,我只想问,那个"is of" 前后是不是省略了什么?
B句中,"needed to "是哪个需要哪个.搞不清.. 说点具体, 谢谢么.