The highlight command associates type1 with Vim's type group so that the same color scheme reflects for keywords like byte.

highlight命令把type1与Vim的type组关联起来，这样就会使用相同的颜色方案显示byte等关键字。

youdao

So, you split the syntax into groups with appropriate contents: the group type1 contains the integer, unsigned, signed, and byte keywords.

因此，把语法划分为组，每个组包含适当的内容：type1组包含integer、unsigned、signed和byte关键字。

youdao

Cold sores caused by herpes virus type1 are very contagious.

一型疱疹病毒造成的唇疱疹是非常易传染性的。

youdao

In brief, all patients with type1 diabetes and patients with more advanced type 2 are treated with insulin.

CNN: Is it harmful to estimate extra insulin before a meal?