Permanently Deleted
The innermost part of a thing. Same word is used for physical cores of planets or fruit.
看透 kàntòu lit “see” and “pass through” = see through
国际 gúojì lit “kingdom/country” and “border/inter-” = international
博弈 bóyì lit “gamble” and “chess” = ‘playing chess’/‘play (strategic) games’
核心 héxīn lit “core” and “heart” = core/heart/crux
Words (词) in Mandarin are often made up of two or more characters (字) including noun + noun as in the above word for core.