Hey there xianshi!
I'm unsure what you mean when you say "just because I am a foreigner". Do you need these commands explained in another language? If so, do let me know which one and I'll do my best to help!
Meanwhile, you can find detailed explanations of these features in English on the Wurst Wiki:
- For the Keybind Manager, check here
- For the .binds command, check here
- For the .bind command, check here
- For the .unbind command, check here
- And for the default keybinds, check here
I hope this helps!