A four-syllable word with first syllable stress with that AA vowel there: caa- caa- cate- cate- categories. Categories.

四音节的单词，第音节的重音是 AA 元音：caa- caa- cat- cat- categories。

You noticed I said: " category" , because I have four cate-...four, four categories on the board, here.

“种类”，因为我有四… … 黑板上列举了四类。

A four syllable word with first syllable stress with  that AA vowel there: caa-- caa-- cate-- cate-- categories. Categories. It's a noun, groups of  people or things that are similar in some way.

四音节单词， 第音节重音带有 AA 元音：caa-- caa-- cate-- cate-- categories。类别。 它是名词， 在某种程度上相似的群人或事物。

Instead of saying " the fact cate ate the rat" , said " the fat car at the rat" .

不妨将“cate吃了那只老鼠”说成“胖车在老鼠旁”。