I know this has been raised in various forms before, but I'd like to draw attention to it again.
I think picture prompts should be there as default / standard in the study interface.
I'm talking about the guys paying for Getty Images or something, and getting an intern to go through and add relevant images to as many items as possible.
This is to make it possible to move away from English -> Chinese mental translation, and go directly from seeing something to thinking of the Chinese word. I know you can enable zh-cn-zh, but that's not how recalling a word works in the real world.
Yes there are some flaws with this, one image won't fit all meanings etc. But I think an image is more mentally versatile than a definition in either language.