In the sentence “Copernicus believed in a heliocentric universe, rather than in the geocentrictheory.”, the word “heliocentric” is explained by the clue of ______ structure.
In the sentence “Copernicus believed in a heliocentric universe, rather than in the geocentrictheory.”, the word “heliocentric” is explained by the clue of ______ structure. 【正确答案】：word
