独立结构: 在用分词短语作状语时, 它逻辑上的主语一般必须与句子的主语一.致. 但有时它也可以有自己独立的逻辑上的主语, 这种结构称为独立结构, 一般表示一种伴随的动作或情况. He rushed into the room, his face covered with sweat. 有时可以表示时间: Late that autumn, his work finished, he prepared to return to his institute. 表示原因: Her eyes dimmed with tears, she did not see him enter. 条件: All things considered, her paper is of greater value than yours.
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