He isn't just fat, he's flabby.是什么意思？

He isn't just fat, he's flabby.

他不光是肥胖, 而且肌肉松弛.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

just

adv. 刚才，仅仅，只是，正好，刚要；adj. 公正的，合理的，恰当的，合法的，正确的；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

fat

adj. 肥的，胖的，厚的，大量的；n. 脂肪，肥肉，动植物油；vt. 养肥，在…中加入脂肪；vi. 长肥；

例句
It's made from natural ingredients, but with the added bonus of containing 30 per cent less fat than ordinary cheese.
该干酪用天然原料制成，而且其脂肪含量比普通干酪低30%。

flabby

adj. 肌肉松垂的，肥胖的；adv. 肌肉松垂地，肥胖地；n. （肌肉等）不结实，松弛；

例句
This exercise is brilliant for getting rid of flabby tums.
这个练习对减除小肚子上的赘肉极为有效。