And in the paragraph I can read, there seem to be two very different types of " bridge job-holder" .

在我能读到的段落中，似乎有两种非常不同的“过渡性工作从事人员”。

One type of bridge takes advantage of a structural feature that's been around for millennia: the arch.

一种类型的桥梁利用了已有数千年历史的结构特征：拱门。

And if we compare them, distinct means very different, groups of older workers are types of bridge job-holder, appeal is the same as there seems to be.

如果我们比较一下，distinct 的意思是非常不同的，年长员工群体是过渡性工作从事人员的类型，吸引到和“看上去似乎有”表达的是同样的意思。