Can I load assetbundle in one request

when I load bundle ,It has so many request.
Causes my download to be very slow
can I merget them?

Bundles cannot be merged. However, bundles provide some compression methods that can improve loading speed: Cocos Creator 3.8 Manual - Asset Bundle

I want use zip,but I only get Merge Depend 、None、Merge All Json.
how can I use zip in web

Currently, Cocos Creator does not provide zip and unzip functions for bundles on the web platform.

so It is not way to solve bundle request too much ,right?

You can try setting the compression type of the bundle to Merge All Json, which can effectively reduce network requests.

but I already done

In addition, you can try using auto atlas to combine images in your project. Check out the documentation: Cocos Creator 3.8 Manual - Auto Atlas

I also do this.
too many coonb file

Okay, then there is no better suggestion for now.