In the usage space, words like "脂 肪 肝(fatty liver)" and "久 坐(outsit)" lie closely which are both specific words, and both are far from the general words like "胖(fat)".
in the semantic space, "脂 肪 肝(fatty liver)" is close to "胖(fat)" since they are semantically related, and both are far from the word "久坐(outsit)".