flesh out

• • (使)长胖，(使)长肥：

    He finished growing taller last year, and now he's fleshing out.

    他去年起已不再长高了，现在正在长胖。

  • [口语]充实(文章、作品等)，使…有血有肉：

    The action in the story is good but the characters aren't very life like; see if you can flesh them out a little.

    这个故事的情节不错，但是角色不太真实；你看看是否能使角色有血有肉一些。