flesh out
1．fill or fatten；add to； make fuller，bigger or longer使充实；增加；加多；加大；加长
This story isn't detailed enough；it needs to be fleshed out．这个故事不够详细，还需要充实一下。
He fleshed out his argument with solid facts．他用确凿的事实来充实自己的论点。
The author fleshed out his story by adding more about his war experience．这位作家将他的战争经历更多地加进了这个故事，使故事更充实了。
2．become heavier；put on weight or flesh长肥；发胖
She lost weight after her illness but is beginning to flesh out again．她病后瘦了，但现在又开始发胖了。
That pig is fleshing out well．那头猪正在迅速长膘。