短語(yǔ)詞組短語(yǔ)a clear and well -understood framework 一個(gè)清楚容易理解的框架well defined and understood 空白的目的not well understood 不太清楚This is well understood ah 這就很好理解啊It is well understood that 眾所周知Understood well 更好地理解Well written and easily understood 行文及可讀性 返回 well understand