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本帖最后由 Oeasy 于 2018-2-9 21:20 编辑
Vocabulary lite 是 bt4baidu 兄制作离线版 Vocabulary.com mdx 时，采用的一个概念。
[英英/English] 【2017/01更新】联网真人发音！Vocabulary.com Dictionary绚丽发布! https://pdawiki.com/forum/thread-12743-1-1.html
>3、Vocabulary.com Dictionary lite
轻量版，只包含所有带简介的单词，共18977个，且未收wordnet释义
简介，官方叫作 blurb ，有这些简介的单词，就是有对应练习题目的单词。
https://www.vocabulary.com/play/ ，答完一个题，会出来一些解释文字，就是词典 https://www.vocabulary.com/dictionary/ 前面的简介。
这些词不一定是按词频，看样子完全就看编辑个人选择，他们觉得这个词可以出题，那就写一段简介，多多益善。 终极目标估计是为每一个词都写上简介，相当于另外编写一部词典了。
参考官方解答：
What makes a word "learnable"? {下面链接估计好多年没更新了}
- https://help.vocabulary.com/hc/e ... s-a-word-learnable-
What makes a word "learnable"?
When looking at a list, the words with a green check are what we call “learnable.” For these words, we have written a descriptive definition and have prepared sufficient questions to thoroughly test knowledge of the word in multiple senses.
If your list does not contain at least 10 learnable words, you will see "filler" questions when practicing the list. Filler questions may be on words from your other lists, or other words that are in your learning program.
We currently have over 14,000 learnable words and continue to add more daily.
A User Asks: What is a "Learnable" Word? We're making new words learnable every day
- https://www.vocabulary.com/artic ... s-a-learnable-word/
Monday December 15th 2014, 11:48 AM
Vocabulary.com is currently teaching 12,000 words.
2014-12, 12000
?, 14000
2017-01, 18977
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发表于 2018-2-9 20:05:12
楼主
发表于 2018-4-25 14:11:27