The productions for vowel, caps, and threeletter are not necessarily distinct; they can all grab an overlapping set of words. For example

caps 和 threeletter 的结果不需要是确切的；它们全部都可以获取彼此有重叠的单词集合。

youdao

We know this because about half of the words in a post she wrote about it were in all caps.

我们之所以会知道这点，是因为她的帖子中近一半的单词都是大写的。

youdao

And if you're wondering why there aren't any baseball caps among our five picks, we've got two words for you: Ben Affleck.

如果你疑惑，我们向你推荐的以下五款帽子中为什么没有棒球帽。我们送你两个字：本。阿夫列克。

youdao