There is a difference. Tag roads with highway=motorway and highway=motorway_link only where the highway signs are green.
兩個（highway=motorway和highway=trunk）不是一樣的。只用highway=motorway和highway=motorway_link如果路上的路標是綠色。

Stop it. 停止。
You're not helping by continually changing highway=trunk to highway=motorway. That's not how it works.
highway=motorway
highway=trunk

Your changes to this map can be seen by everyone. Don't add things that definitely don't exist.

The previous tagging was correct. In future can you please only do large-scale tag changes like these with community consensus? Thank you

I notice you tagged the Airport Express tracks as service=siding... They're actually the fast line tracks. Will fix now

Aren't government maps copyrighted?

The Sheung Wan part of Des Voeux Road Central needs to be fixed up (preferably with a graphical editor) since the placement is quite off.