his grandfather has been ill

his grandfather has been ill 基本解释

他的祖父病了

重点词汇

grandfather n. （外）祖父；始祖 vt. 新规定限制；不受新条例

been v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质( be的过去分词 )；在，存在；不受干扰；去过了；be的过去分词；老练（指性事）；以前也经历过