我用在线词典wordnik查了这个词，这类网络词典的一个特点是有附一个反映单词使用频率随时间变化的表格。
I was looking at the web based dictionary wordnik and one of the features they have is a little graphic representing frequency of a word's appearance over time.
柯林斯词典的专家们通过追踪单词出现的频率，已经编辑出一个在日常使用中消失的单词的列表。
Collins Dictionary experts have compiled a list of words which have fallen out of use by tracking how often they appear.
如您所见，分析返回了很多单词，根据在英语中的常见用途，很多使用频率高的单词是不相关的。
As you can see, the analysis returned a lot of words, with many frequent words being irrelevant by dint of their common usage in the English language.
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