You mean, how to translate Core Embryo?
Believe me, even I'm baffled. :P Just Kidding.
Core Embryo - Core - the inner shell, like planet core; Embryo - (process of cell division and cellular differentiation during early prenatal development which leads to the development of a mammal ian embryo..) in this case it is like a seed of something, some kind of energy from within all things in Toriworld get made. Like a nuclear reactor but living one.
Idk if this helps or confuse u even more. :P
Vast - like many... A vast open space etc...
Veb - You know who Veb is. Look at Wikipedia under hacker. :P
Lol, non-Englishman trying to teach other non-Englishman English words. This is auto-fail! :P
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helo guys-AkumaBeast