Hi Sherry0429,
Unfortunately, we do not provide one on one support. However, we do have a number of resources that can be used to help point you in the right direction:
Developing for XR Experiences in Unreal Engine | Unreal Engine 5.1 Documentation - VR Development
Working with Audio in Unreal Engine | Unreal Engine 5.1 Documentation - Audio system (subtitles)
A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums - Physics
A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums - Animation and Rigging (MoCap, specifically episode 12 of the playlist though I’d recommend the whole series).
Additionally, I would highly recommend checking out our forums at http://forums.unrealengine.com. We have a large community of developers that like to help other developers move forward and grow. On this we have Content Creation, Blueprints, Animation, VR, and a Chinese section specifically for Chinese game developers.